Type

Cheapest Surveillance Hard Drives by Price per TB

Surveillance hard drives are designed to write video constantly, around the clock, for cameras connected to a DVR or NVR. Lines like Seagate SkyHawk and WD Purple favor sustained sequential writes and are tuned for many camera streams. Compare their price per TB with the other internal drives below: the main reason to buy one is the workload it is built for, not a lower price.

186listings
$7/TBcheapest
$53/TBmedian
7,200 RPMfastest spin

Best value picks

Cheapest per TB among named brands. Prices as of 2026-10-28; check Amazon for the current price.

1
$25.71/TBMDD MAXDIGITALDATA MDD 14TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Sur...
14 TB$359.99SATA3.5"
View on Amazon
2
$25.71/TBMDD MAXDIGITALDATA 14TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveill...
14 TB$359.99SATA3.5"
View on Amazon
3
$25.71/TBMDD 14TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveil...
14 TB$359.99SATA3.5"
View on Amazon

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186 listings

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Min TB Min RPM Form Form factor Feature Condition

$/TB	Price	Capacity	Pack	Form	Form factor	Interface	Spin speed	Features	Condition	Brand	Product	Deal
7.08	$169.99	24 TB	1	Internal HDD	—	SATA	—	Surveillance	New	Other	DS-7308HUHI-F4/N 8 Channel Hybrid DVR Recorder, Supports TVI/AHD/CVI/CVBS/IP Security Cameras, Up to 10 Channels, 4 SATA Bays (24TB Max), 4K HDMI Output, Dual Gigabit LAN, H.264+,No Hard Drive	View deal
25.00	$349.99	14 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	Other	Surveillance HDD 14TB 7200RPM SATA 6Gb/s 128MB Cache 3.5inch Internal Surveillance Hard Drive (BG14TSA256S) - 3 Years Warranty (Renewed)	View deal
25.71	$359.99	14 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA MDD 14TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
25.71	$359.99	14 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA 14TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
25.71	$359.99	14 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD 14TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance Storage (MD14TGSA25672DVR) - 3 Years Warranty (Renewed)	View deal
27.46	$329.50	12 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance Storage (MD12TGSA25672DVR) - 3 Years Warranty (Renewed)	View deal
27.50	$329.99	12 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance Storage (MD12TBGSA25672DVR) - 3 Years Warranty (Renewed)	View deal
28.12	$449.99	16 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA MDD 16TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance Storage (MD16TGSA25672DVR) - 3 Years Warranty (Renewed)	View deal
28.92	$347.00	12 TB	1	Internal HDD	—	—	—	Surveillance	New	Other	C-HDD12T-PUR – 12TB Surveillance Hard Drive	View deal
29.17	$349.99	12 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD 2023 (MDD12TSATA25672DVR) 12TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
29.17	$349.99	12 TB	1	Internal 3.5"	3.5"	—	7,200 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA MDD 12TB 7200 RPM 256MB Cache 3.5-inch Internal Hard Drive for Surveillance Storage (Renewed)	View deal
29.37	$469.95	16 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD (MDD16TSATA25672DVR) 16TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
29.37	$469.99	16 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA MDD 16TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance Storage (MD16TGSA25672DVR) - 3 Years Warranty (Renewed)	View deal
30.00	$89.99	3 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	Hitachi	Hitachi Ultrastar 7K3000 3TB 64MB Cache 7200RPM SATA 3.0Gb/s 3.5in Heaty-Duty Internal Hard Drive for Surveillance System, RAID, NAS, PC/MAC (Renewed)	View deal
30.00	$59.99	2 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance	Renewed	Hitachi	Hitachi 2TB 7200RPM 32MB Cache SATA 3.0Gb/s (Heavy Duty, 24/7) 3.5inch Internal Desktop Hard Drive (for PC, Mac, CCTV DVR, RAID, NAS) (Renewed)	View deal
30.00	$359.99	12 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	New	MDD	MDD MAXDIGITALDATA 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance Storage (MD12TBGSA25672DVR) - 3 Years Warranty	View deal
30.56	$549.99	18 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD (MDD18TS25672CCTV) 18TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
30.56	$549.99	18 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	New	MDD	MDD (MDD18TSATA25672DVR) 18TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years Warranty	View deal
30.56	$549.99	18 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA MDD (MDD18TS25672CCTV) 18TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
30.62	$489.99	16 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA (MDD16TSATA25672DVR 16TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
30.83	$369.99	12 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD (MDD12TSATA25672DVR) 12TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
31.58	$189.50	6 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	HGST	HGST Ultrastar 6TB 3.5inch 128MB Cache 7200RPM SATA 6.0Gb/s Internal Enterprise Hard Drive - HUS726060ALE614 (For Desktop PC/Mac, NAS, CCTV DVR, Surveillance System, RAID, Server) (Renewed)	View deal
31.67	$759.99	24 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD 24TB 7200RPM 512MB Cache SATA 6.0Gb/s 3.5inch Internal Hard Drive for Surveillance Storage (MDD24TS51272DVR) (Renewed) - 5 Years Warranty	View deal
31.82	$699.99	22 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD (MDD22TSATA25672DVR) 22TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
32.00	$319.99	10 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD 10TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
32.00	$319.99	10 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Hard Drive for Surveillance Storage (MD10TGSA25672DVR) - 3 Years Warranty (Renewed)	View deal
32.00	$319.99	10 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	New	Other	10TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years (HDT10TS25672DVR)	View deal
32.00	$639.99	20 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD (MDD20TSATA25672DVR) 20TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
32.49	$64.99	2 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	Seagate	Seagate ST32000644NS 2TB 7200RPM SATA II 3 GB/s 64 MB Cache 3.5in Enterprise Hard Drive (PC, RAID, NAS, CCTV DVR) [Renewed] -w/1 Year Warrany	View deal
32.50	$649.99	20 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD (MDD20TSATA25672DVR) 20TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-Inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
33.00	$329.99	10 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD (MDD10TSATA25672DVR) 10TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
33.17	$198.99	6 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA 6TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance (MD6000GSA12872DVR) - 3 Years Warranty (Renewed)	View deal
33.32	$99.95	3 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	MDD	MDD 2022 MAXDIGITALDATA MaxDigitalData 3TB 32MB Cache 5700PM SATA 6.0Gb/s 3.5-inch Internal Surveillance CCTV DVR Hard Drive (MD3000GSA3257DVR) - 2 Year Warranty (Renewed)	View deal
33.33	$99.99	3 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	HGST	HGST Ultrastar 3TB 64MB Cache 7200RPM SATA III 6.0Gb/s 3.5in (Heaty-Duty, 24/7) Internal Hard Drive for CCTV DVR, NAS, PC/MAC (Renewed)	View deal
33.33	$99.99	3 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	HGST	HGST Ultrastar 7K4000 (0F17731) 3TB 64MB Cache 7200RPM SATA III 6.0Gb/s 3.5in Heaty-Duty Internal Hard Drive for CCTV DVR, NAS, PC/MAC (Renewed)	View deal
33.33	$199.99	6 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	MDD	MDD - HGST Ultrastar (HUS726060ALE610) 6TB 7200RPM 128MB Cache SATA 6Gb/s 3.5-inch Enterprise Hard Drive (for NAS, Desktop PC, Surveillance Storage) - 5 Year Warranty (Renewed)	View deal
33.33	$99.99	3 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	Hitachi	Hitachi Ultrastar 7K3000 (0F12471) 3TB 64MB Cache 7200RPM SATA III (6.0Gb/s) 3.5in Hard Drive - PC/Mac, ,RAID, NAS, CCTV DVR (Renewed)	View deal
33.33	$100.00	3 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	HGST	HGST Ultrastar 3TB 7200 RPM 64MB Cache SATA III 6.0Gb/s 3.5in Internal Hard Drive for NAS, RAID, Surveillance Storage -HUA723030ALA640 (Renewed) w/3 Year Warranty	View deal
34.99	$69.99	2 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	Hitachi	Hitachi Ultrastar A7K2000 2TB HUA722020ALA330 2TB 32MB Cache 7200RPM SATA 3.0Gb/s Enterprise 3.5inch Internal Hard Drive (for PC, Mac, CCTV DVR, RAID, NAS) (Renewed)	View deal
35.00	$209.99	6 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD (MDD6TSATA6472DVR) 6TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5-inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
35.00	$209.99	6 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	New	MDD	MaxDigitalData 6TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive for Surveillance (MD6000GSA12872DVR) - 3 Years Warranty	View deal
36.25	$289.99	8 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	MDD	MDD MAXDIGITALDATA - 8TB 7200RPM 256MB Cache SATA 6Gb/s 3.5inch Enterprise Hard Drive (NAS, Surveillance, RAID) (Renewed)	View deal
36.65	$109.95	3 TB	1	Internal 3.5"	—	SATA	—	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA 3TB 32MB Cache 5700PM SATA 6.0Gb/s 3.5'' Internal Surveillance CCTV DVR Hard Drive (MD3000GSA3257DVR) (Renewed)	View deal
37.17	$669.00	18 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Western Digital	Western Digital 18TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512MB Cache, 3.5" - WD180PURZ (Renewed)	View deal
37.50	$149.99	4 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA MDD (MDD4TSATA6472DVR) 4TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
37.50	$299.99	8 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance (MD8000GSA25672DVR) (Renewed)	View deal
37.50	$299.99	8 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MaxDigitalData 2021 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance (Renewed)	View deal
37.90	$379.00	10 TB	1	Internal HDD	—	—	—	Surveillance	New	Other	C-HDD10T-PUR 10TB Surveillance Hard Drive	View deal
38.62	$308.99	8 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA MDD (MDD8TSATA12872DVR) 8TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5-inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	View deal
39.98	$119.95	3 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance	New	Other	WL 3TB 7200RPM 64MB Cache SATA III 6.0Gb/s 3.5" Internal Desktop Hard Drive (For RAID, NAS, DVR, Desktop PC) w/1 Year Warranty	View deal
40.00	$159.99	4 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance	New	MDD	MDD MAXDIGITALDATA (MDD4000GSA6472 4TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5inch Internal Desktop Hard Drive (for Desktop PC, Mac, CCTV DVR, Surveillence, Server, NAS)	View deal
40.00	$159.99	4 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	MDD	MDD 4TB 64MB Cache 5900PM SATA 6.0Gb/s 3.5-inch Internal Surveillance CCTV DVR Hard Drive (MD4000GSA6459DVR) - 2 Year Warranty (Renewed)	View deal
40.00	$120.00	3 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	Renewed	Western Digital	Western Digital Purple 3TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD30PURX [Old Version] (Renewed)	View deal
40.00	$159.99	4 TB	1	Internal 3.5"	—	SATA	—	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA MaxDigitalData 4TB 64MB Cache 7200PM SATA 6.0Gb/s 3.5'' Internal Surveillance CCTV DVR Hard Drive (MD4000GSA6472DVR) - w/ 2 Year Warranty (Renewed)	View deal
41.42	$331.39	8 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Other	for ST8000VX0022 ST8000VX004 8TB Surveillance 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive	View deal
41.67	$249.99	6 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Seagate	Seagate Skyhawk 6TB Surveillance Hard Drive - SATA 6Gb/s 128MB Cache 3.5-Inch Internal Drive (ST6000VX0023) (Renewed)	View deal
42.33	$127.00	3 TB	1	Internal 3.5"	3.5"	SATA	—	NAS Surveillance	Renewed	Hitachi	Hitachi Deskstar 5K3000 HDS5C3030ALA630 (0F12460) 3TB CoolSpin 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive (for NAS,Surveillance System, Desktop PC) - 3 Years Warranty (Renewed)	View deal
42.49	$169.95	4 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	New	Other	WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty	View deal
42.49	$169.95	4 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA MDD (MDD4TSATA6472DVR) 4TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5-inch Internal Surveillance Hard Drive (Renewed)	View deal
42.50	$339.99	8 TB	1	Internal 3.5"	—	SATA	—	Surveillance	Renewed	Seagate	Seagate Skyhawk ST8000VX004 8 TB Hard Drive - 3.5 Internal - SATA (SATA/600), 256 MB Buffer (Renewed)	View deal
42.50	$169.99	4 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	MDD	MaxDigitalData 4TB 64MB Cache 7200PM SATA 6.0Gb/s 3.5" Internal Surveillance CCTV DVR Hard Drive (MD4000GSA6472DVR)	View deal
42.50	$169.99	4 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Hiseeu	Hiseeu 4TB Surveillance Internal Hard Drive-64MB Cache SATA 6Gb/s 3.5 Inch	View deal
43.75	$175.00	4 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	Renewed	Western Digital	WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD40PURZ (Renewed)	View deal
43.75	$175.00	4 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	Renewed	Western Digital	WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD40PURX (Renewed)	View deal
45.00	$89.99	2 TB	1	Internal 3.5"	3.5"	SATA	5,900 RPM	Surveillance	New	Other	2TB 5900RPM 64MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance (BG2TSA6459S)	View deal
45.00	$809.99	18 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 18TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD181PURP	View deal
45.36	$635.00	14 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Seagate	Seagate Skyhawk AI 14TB Surveillance Internal Hard Drive HDD–3.5 Inch SATA 6Gb/s 256MB Cache with Drive Health Management + 3-Year Rescue Service (ST14000VE0008)	View deal
45.83	$275.00	6 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Seagate	Seagate Skyhawk ST6000VX001 6TB 3.5" Internal Hard Drive - SATA	View deal
45.83	$550.00	12 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	Renewed	Western Digital	WD Purple 12TB Surveillance Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD121PURZ (Renewed)	View deal
45.83	$550.00	12 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Western Digital	Western Digital 12TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD121PURZ (Renewed)	View deal
46.00	$459.99	10 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Seagate	Seagate Skyhawk AI ST10000VE0008 10 TB Hard Drive - 3.5" Internal - SATA (SATA/600)	View deal
47.50	$285.00	6 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Western Digital	Western Digital 6TB WD Purple Surveillance Internal Hard Drive SATA 6Gb/s, 64MB Cache, 3.5 - WD60PURZ (Renewed)	View deal
47.74	$572.84	12 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Seagate	Seagt Skyhawk AI ST12000VE001 12 TB Hard Drive 3.5" Internal SATA (SATA/600) Network Video Recorder	View deal
48.75	$194.99	4 TB	1	Internal 3.5"	3.5"	SATA	—	CMR Surveillance	New	Western Digital	Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD, CMR, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD44PURZ	View deal
49.06	$147.18	3 TB	1	Internal HDD	—	SATA	—	Surveillance	New	Seagate	Seagate Skyhawk Surveillance HDD ST3000VX015 - Hard Drive - 3 TB - SATA 6Gb	View deal
49.48	$98.95	2 TB	1	Internal 3.5"	3.5"	SATA	5,900 RPM	Surveillance	New	MDD	MDD ST2000VM003 2TB 5900RPM 64MB Cache SATA 6.0Gb/s 3.5inch Surveillance Hard Drive	View deal
49.50	$198.00	4 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Seagate	SEAGATE ST4000VX007 Skyhawk 4TB Surveillance Hard SATA 6Gb/s 64MB Cache 3.5-Inch Internal Drive-Frustration Free Packaging (ST4000VXZ07) Mechanical Hard Disk	View deal
49.55	$991.00	20 TB	1	Internal HDD	—	SATA	7,200 RPM	CMR Surveillance Enterprise	New	Seagate	Seagate Exos X20 ST20000NM000D 20 TB Hard Drive - Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method - Storage System, Video Surveillance System Device Supported - 7200rpm - 285	View deal
49.58	$594.99	12 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 12TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD122PURP	View deal
49.67	$149.00	3 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	Seagate	Seagate Constellation ES.2 ST33000650NS 3TB 7200RPM 64MB Cache 3.5in SATA 6.0Gb/s Enterprise Hard Drive - PC, RAID, NAS, CCTV DVR (Renewed)	View deal
49.75	$199.00	4 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Western Digital	Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ (Renewed)	View deal
49.80	$498.00	10 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Seagate	Seagate SkyHawk 10TB Surveillance Hard Drive - SATA 6Gb/s 256MB Cache 3.5-Inch Internal Drive (ST10000VX0004)	View deal
50.00	$99.99	2 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	New	Other	WL 2TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty	View deal
50.00	$99.99	2 TB	1	Internal 3.5"	—	SATA	—	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA MaxDigitalData 2TB 32MB Cache 7200PM SATA 3.0Gb/s 3.5'' Internal Surveillance CCTV DVR Hard Drive (MD2000GSA3272DVR) - w/2 Year Warranty (Renewed)	View deal
50.00	$99.99	2 TB	1	Internal 3.5"	3.5"	SATA	5,900 RPM	Surveillance	Renewed	Toshiba	TOSHIBA DT01ABA200V 2TB 32MB Cache 5900RPM SATA 6.0Gb/s 3.5-inch Surveillance Hard Drive - 3 Year Warranty (Renewed)	View deal
50.75	$203.00	4 TB	1	Internal 3.5"	3.5"	SATA	—	CMR Surveillance	New	Seagate	Seagate Skyhawk ST4000VX016 4 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method - Network Video Recorder, Camera, Video Recorder Device Supported	View deal
50.99	$203.95	4 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Seagate	Seagate Skyhawk ST4000VX013 4 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Network Video Recorder, Video Surveillance System Device Supported	View deal
51.87	$414.99	8 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 8TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD8002PURP	View deal
52.47	$1,259.31	24 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 24TB WD Purple Pro Surveillance HDD, SATA 6 Gb/s, 512MB Cache, 3.5", Serial ATA-600	View deal
52.67	$316.00	6 TB	1	Internal HDD	—	—	—	Surveillance	New	Seagate	Seagate Skyhawk ST6000VX0023 6 TB Internal Hard Drive	View deal
52.87	$634.45	12 TB	1	Internal HDD	—	SATA	7,200 RPM	CMR Surveillance Enterprise	New	Seagate	Seagate Exos X18 ST12000NM001J 12 TB Hard Drive - Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method - Storage System, Video Surveillance System Device Supported - 7200rpm - 270	View deal
53.00	$529.99	10 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 10TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD102PURZ	View deal
53.00	$529.99	10 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 10TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD101PURP	View deal
53.33	$320.00	6 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	New	Western Digital	WD Purple 6TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD60PURX [Old Version]	View deal
53.75	$214.99	4 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	New	Western Digital	Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD40PURZ	View deal
53.87	$215.49	4 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	New	Western Digital	Western Digital WD Purple Harddisk 3.5" 4TB SATA3 6Gb/s IntelliPower 5400RPM 64 MB HDD Surveillance WD40PURX	View deal
53.98	$26.99	500 GB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Seagate	Seagate 500GB Pipeline HD SATA 3Gb/s 8MB Cache 3.5-Inch Internal Hard Drive for Surveillance (ST3500312CS) (Renewed)	View deal
54.37	$434.95	8 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 8TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 128 MB Cache, 3.5" - WD84PURZ	View deal
54.42	$326.50	6 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD60PURZ	View deal
54.82	$328.90	6 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 128 MB Cache, 3.5" - WD62PURZ	View deal
54.82	$328.90	6 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD63PURZ	View deal
55.00	$109.99	2 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA 2TB 32MB Cache 7200PM SATA 3.0Gb/s 3.5inch Internal Surveillance CCTV DVR Hard Drive (MD2000GSA3272DVR) (Renewed)	View deal
55.00	$549.95	10 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	New	Western Digital	WD Purple 10TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 256MB Cache 3.5 - WD100PURZ	View deal
55.00	$165.00	3 TB	1	Internal HDD	—	SATA	—	Surveillance	New	Seagate	Seagate Skyhawk Surveillance ST3000VX009 3TB SATA 6.0 Gb/s 256MB Hard Drive	View deal
55.63	$445.00	8 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	Surveillance	New	Western Digital	Western Digital - WD 8TB Purple Surveillance Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 256MB Cache, 3.5", Crypto Chia Mining - WD82PURZ - BROAGE HDMI Cable, Solid State Drive	View deal
55.63	$445.00	8 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 8TB WD Purple Surveillance Internal Hard Drive - SATA 6 Gb/s, , 256 MB Cache, 3.5" - WD81PURZ (Old Version)	View deal
55.71	$780.00	14 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 14TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD141PURP	View deal
56.21	$899.37	16 TB	1	Internal HDD	—	—	—	Surveillance	New	Evertech	Evertech 16 Channel H.265 Security DVR with 16TB Hard Drive Surveillance Recorder Supports 1080p AHD TVI CVI and Analog (960H) Cameras, Easy Remote Access	View deal
56.25	$225.00	4 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	New	Western Digital	WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD40PURX [Old Version]	View deal
56.30	$788.13	14 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 14TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD140PURZ	View deal
56.75	$227.00	4 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ	View deal
57.98	$28.99	500 GB	1	Internal 3.5"	3.5"	SATA	5,900 RPM	Surveillance	Renewed	MDD	MDD MAXDIGITALDATA 500GB 5900RPM 16MB Cache SATA 3.0Gb/s 3.5-inch Surveillance Hard Drive - 3 Year Warranty (Renewed)	View deal
58.08	$697.00	12 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Seagate	Seagate Skyhawk AI ST12000VE001 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Network Video Recorder, Camera Device Supported - 3 Year Warranty (Renewed)	View deal
58.11	$581.12	10 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 10TB WD Purple Surveillance Internal Hard Drive - SATA 6 Gb/s, , 256 MB Cache, 3.5" - WD101PURZ (Old Version)	View deal
58.23	$232.90	4 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ	View deal
59.00	$59.00	1 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Western Digital	Western Digital AV-GP WD10EURX 1TB IntelliPower 64MB Cache SATA 6Gb/s 3.5in Internal Hard Drive (for Surveillance) - 2 Years Warranty (Renewed)	View deal
59.94	$959.00	16 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Seagate	Seagate Skyhawk AI ST16000VE002 - Hard Drive - 16 TB - Internal - 3.5" - SATA 6Gb/s - Buffer: 256 MB - with 3 Years Rescue Data Recovery	View deal
59.98	$29.99	500 GB	1	Internal 3.5"	3.5"	SATA	5,900 RPM	Surveillance	Renewed	Seagate	Seagate Pipeline HD 500GB 5900RPM 8MB Cache SATA 3.0Gb/s 3.5in Internal Hard Drive - ST3500312CS (for Surveillance System, CCTV DVR) - 3 Year Warranty (Renewed)	View deal
59.98	$29.99	500 GB	1	Internal 3.5"	3.5"	SATA	5,900 RPM	Surveillance	New	Other	500GB 5900RPM 8MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance (BG500GSA859S)	View deal
59.98	$29.99	500 GB	1	Internal 3.5"	3.5"	SATA	—	NAS Surveillance	Renewed	Seagate	Seagate Pipeline HD 500GB 8MB Cache SATA 3.0Gb/s 3.5inch Internal Desktop Hard Drive (PC, RAID, NAS, Surveillance Storage) - 3 Year Warranty (Renewed)	View deal
59.99	$59.99	1 TB	1	Internal 3.5"	3.5"	SATA	5,900 RPM	Surveillance	Renewed	Seagate	Seagate Pipeline HD (ST1000VM002) 1TB 5900RPM 64MB Cache SATA 6.0Gb/s 3.5inch Surveillance Hard Drive - 2 Year Warranty (Renewed)	View deal
60.00	$480.00	8 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Seagate	Seagate Skyhawk AI 8TB Surveillance Internal Hard Drive HDD–3.5 Inch SATA 6Gb/s 256MB Cache + Drive Health Management & 3-Year Recovery Service - (ST8000VEZ00)	View deal
60.00	$179.99	3 TB	1	Internal HDD	—	—	—	Surveillance	New	Other	16 Channel 5MP Hybrid Security DVR Recorder ONVIF Compatible 3TB HDD	View deal
60.00	$719.99	12 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 12TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD121PURZ	View deal
60.46	$483.70	8 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Seagate	Seagate Skyhawk AI ST8000VE000 8 TB Hard Drive - 3.5" Internal - SATA (SATA/600)	View deal
60.50	$1,089.00	18 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 18TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256MB Cache, 3.5" - WD180PURZ	View deal
60.97	$487.79	8 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 8TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD8001PURP	View deal
61.58	$246.33	4 TB	1	Internal 3.5"	3.5"	SATA	—	CMR Surveillance	New	Western Digital	Western Digital WD Purple Surveillance Hard Disk 4TB CMR 3.5 Inch SATA 6Gb/s AllFrame Technology, Supports up to 64 Cameras, 180 TB/Year Workload WD44PURZ-AJP Eco Package	View deal
61.60	$123.20	2 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Western Digital	Western Digital 2TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD23PURZ (Renewed)	View deal
61.62	$492.95	8 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	New	Western Digital	WD Purple 8TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 128MB Cache 3.5 Inch - WD80PURZ	View deal
62.50	$250.00	4 TB	1	Internal HDD	—	SATA	—	Surveillance	New	Seagate	(Old Model) Seagate 4TB Surveillance HDD 6Gb/s Internal Hard Drive (ST4000VX000)	View deal
63.99	$63.99	1 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	MDD	MaxDigitalData 1TB 32MB Cache 7200PM SATA 3.0Gb/s 3.5inch Internal Surveillance CCTV DVR Hard Drive (MD1000GSA3272DVR) (Renewed)	View deal
64.99	$64.99	1 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	MDD	MaxDigitalData 1TB 64MB Cache 5900PM SATA 6.0Gb/s 3.5-inch Internal Surveillance CCTV DVR Hard Drive (MD1000GSA6459DVR) - w/ 2 Year Warranty (Renewed)	View deal
66.67	$200.00	3 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Western Digital	Western Digital 3TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD30PURZ (Renewed)	View deal
67.50	$135.00	2 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	Renewed	Western Digital	WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD20PURZ (Renewed)	View deal
67.50	$270.00	4 TB	1	Internal HDD	—	—	—	Surveillance	New	Seagate	Seagate Wave - Seag 4TB ST4000VX007 SA3 \| Skyhawk	View deal
67.52	$67.52	1 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance	Renewed	Western Digital	Western Digital RE3 WD1002FBYS 1TB 7200RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive (PC, Mac, NAS, CCTV DVR) - [Renewed] w/ 1 Year Warranty	View deal
68.06	$544.45	8 TB	1	Internal HDD	—	SATA	—	Surveillance	New	Seagate	(Old Model) Seagate Surveillance HDD 8TB 256MB Cache SATA 6.0Gb/s Internal Hard Drive (ST8000VX0002)	View deal
68.45	$684.45	10 TB	1	Internal HDD	—	SATA	7,200 RPM	Surveillance Enterprise	New	Seagate	Seagate Exos 7E10 ST10000NM017B 10 TB Hard Drive - Internal - SATA (SATA/600) - Storage System, Video Surveillance System Device Supported - 7200rpm - 512e/4Kn Format	View deal
68.63	$549.00	8 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 8TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD82PURZ	View deal
69.33	$416.00	6 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Western Digital	Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 128 MB Cache, 3.5" - WD62PURZ (Renewed)	View deal
69.50	$278.00	4 TB	1	Internal 3.5"	—	SATA	—	Surveillance	New	Toshiba	Toshiba S300 4TB Internal Surveillance Hard Drive, 3.5’’ SATA HDD, Supports up to 64 HD Cameras at a 180TB/Year workload (HDWT840UZSVA)	View deal
69.99	$69.99	1 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	MDD	MaxDigitalData 1TB 64MB Cache 5900PM SATA 6.0Gb/s 3.5" Internal Surveillance CCTV DVR Hard Drive (MD1000GSA6459DVR) - 2 Year Warranty (Renewed)	View deal
69.99	$69.99	1 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	MDD	MDD 1TB 64MB Cache 5900PM SATA 6.0Gb/s 3.5-inch Internal Surveillance Hard Drive (MDD1000GSA6459DVR) - 3 Year Warranty (Renewed)	View deal
69.99	$69.99	1 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	MDD	MaxDigitalData 1TB 32MB Cache 7200PM SATA 3.0Gb/s 3.5-inch Internal Surveillance CCTV DVR Hard Drive MD1000GSA3272DVR - w/ 2 Year Warranty (Renewed)	View deal
71.98	$35.99	500 GB	1	Internal 3.5"	3.5"	SATA	5,900 RPM	NAS Surveillance	Renewed	Seagate	Seagate Pipeline HD ST3500312CS 500GB 5900RPM 8MB Cache SATA II 3.0Gb/s 3.5in Internal Hard Drive (PC, RAID, NAS, CCTV DVR) [Renewed] -w/1 Year Warrany	View deal
74.50	$149.00	2 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	New	Western Digital	WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD20PURX [Old Version]	View deal
74.50	$149.00	2 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Seagate	Seagate Skyhawk 2TB Internal Hard Drive, 3.5 Inch SATA 6Gb/s HDD for DVR & NVR Surveillance Systems, 24/7 Recording, Model ST2000VX007 (M. Refurbished)	View deal
74.75	$299.00	4 TB	1	Internal HDD	—	SATA	—	Surveillance	New	Hikvision	Hikvision HK-HDD4T 4TB Sata Hard Disk Drive Surveillance Grade	View deal
77.30	$154.60	2 TB	1	Internal 3.5"	3.5"	SATA	—	CMR Surveillance	New	Western Digital	Western Digital 2TB WD Purple Surveillance Internal Hard Drive HDD, CMR, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD23PURZ	View deal
77.98	$38.99	500 GB	1	Internal 3.5"	3.5"	SATA	5,900 RPM	Surveillance	New	MDD	MDD MAXDIGITALDATA 500GB 5900RPM 16MB Cache SATA 3.0Gb/s 3.5-inch Surveillance Hard Drive - 3 Year Warranty	View deal
79.92	$958.98	12 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	CMR Surveillance	New	Western Digital	Western Digital WD Purple Pro Surveillance Hard Drive 12TB CMR 3.5 Inch SATA 7,200 RPM Cache, 512 MB AllFrame AI Compatible with 64 Cameras WD122PURP-AJP Eco Package	View deal
79.98	$39.99	500 GB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	Renewed	Western Digital	Western Digital WD5000AVDS 500GB 5400RPM 32MB Cache SATA 3.0Gb/s 3.5inch Internal Hard Drive (for Desktop PC, Surveillance Storage) (Renewed)	View deal
79.98	$39.99	500 GB	1	Internal 3.5"	—	SATA	5,400 RPM	Surveillance	Renewed	Western Digital	Western Digital AV-GP WD5000AVDS 500GB 32MB Cache 5400RPM SATA II 3.0Gb/s 3.5 Internal Hard Drive (CCTV DVR, PC, Mac) (Renewed)	View deal
79.98	$39.99	500 GB	1	Internal 2.5"	2.5"	SATA	5,400 RPM	Surveillance	New	Eseecloud	Eseecloud 500 GB Surveillance Internal Hard Drive - SATA (SATA/600) - 2.5" Drive - 5400rpm - 32 MB Buffer-RoHS Compliance Built for 24/7 Surveillance	View deal
79.99	$79.99	1 TB	1	Internal 3.5"	3.5"	SATA	5,900 RPM	Surveillance	New	Other	1TB 5900RPM 64MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance (BG1TSA1659S)	View deal
80.50	$161.00	2 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Western Digital	Western Digital 2TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD20PURZ (Renewed)	View deal
81.25	$325.00	4 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	Renewed	Western Digital	Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ (Renewed)	View deal
87.25	$349.00	4 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	HGST	HGST Ultrastar 7K4000 (0F17719) 4TB 64MB Cache 7200RPM SATA III 6.0Gb/s 3.5" Internal Desktop Hard Drive for PC, Mac, NAS, RAID, CCTV DVR (Renewed) w/1 Year Warranty	View deal
87.50	$175.00	2 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 2TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD20PURZ	View deal
87.70	$175.39	2 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 2TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD22PURZ	View deal
92.18	$184.35	2 TB	1	Internal 3.5"	3.5"	—	—	Surveillance	New	Seagate	Seagate ST2000VX015 3.5 in. 256 MB & 2TB Skyhawk Lite Surveillance Internal Hard Drive HDD	View deal
98.00	$98.00	1 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	Renewed	Western Digital	WD Purple 1TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD10PURX [Old Version] (Renewed)	View deal
98.20	$196.39	2 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Seagate	SEAGATE ST2000VXZ08 Skyhawk 2TB Surveillance Hard SATA 6Gb/s 64MB Cache 3.5" Internal Drive-Frustration Free Packaging (ST2000VX008),Mechanical Hard Disk	View deal
99.50	$199.00	2 TB	1	Internal HDD	—	—	—	Surveillance	New	Seagate	Seagate ST2000VX017 2TB Skyhawk 5400 Hard Drive	View deal
107.50	$214.99	2 TB	1	Internal HDD	—	—	—	Surveillance	New	Super	Super HD 1080P 4 Channel H.265 Surveillance DVR, 2TB Hard Drive	View deal
115.00	$115.00	1 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance	New	Western Digital	Western Digital(WD) BLUE Deskptop 1TB( 1Terabyte) 3.5"Hard Disk Drive, 5400~7200RPM, SATA3 ( 6.0GB/s), 64MB Cache, IDEAL for PC/Mac/CCTV/NAS/DVR/Raid and SATA Applications, 1YR Warranty (Blue)	View deal
120.00	$239.99	2 TB	1	Internal HDD	—	—	—	Surveillance	New	Other	16 Channel 5MP Security DVR Recorder with 2TB HDD, H.265+ Hybrid 5-in-1	View deal
125.99	$125.99	1 TB	1	Internal HDD	—	—	—	Surveillance	New	SANNCE	SANNCE 8CH 1080P DVR Recorder, Human Detection, 5-in-1 Hybrid, 1TB HDD	View deal
128.99	$128.99	1 TB	1	Internal HDD	—	—	—	Surveillance	New	SANNCE	SANNCE 8CH 1080P CCTV DVR, 5-in-1 Hybrid Digital Video Recorder, 1TB HDD	View deal
135.00	$135.00	1 TB	1	Internal 3.5"	3.5"	SATA	7,200 RPM	NAS Surveillance Enterprise	Renewed	Seagate	Seagate ST31000524NS 1TB 7200RPM SATA II 3GB/s 64 MB Cache 3.5in Enterprise Hard Drive (PC, RAID, NAS, CCTV DVR) [Renewed] -w/1 Year Warrany	View deal
139.99	$139.99	1 TB	1	Internal HDD	—	—	—	Surveillance	New	ZOSI	ZOSI H.265+ 8 Channel 3K Lite Security DVR Recorder, Hybrid 4-in-1, 1TB HDD	View deal
139.99	$139.99	1 TB	1	Internal HDD	—	—	—	Surveillance	New	ZOSI	ZOSI H.265+ 8CH 1080p Surveillance DVR Video recorders with 1TB Hard Drive	View deal
144.00	$144.00	1 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	New	Western Digital	WD Purple 1TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD10PURX [Old Version]	View deal
147.00	$147.00	1 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Western Digital	Western Digital 1TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD11PURZ	View deal
159.99	$159.99	1 TB	1	Internal HDD	—	—	—	Surveillance	New	Other	4K 10CH Wireless NVR Recorder with 10.1" IPS Monitor, 1TB Hard Drive	View deal
159.99	$159.99	1 TB	1	Internal HDD	—	—	—	Surveillance	New	SANNCE	SANNCE 16CH 1080P CCTV DVR, Hybrid 5-in-1 Digital Video Recorder, 1TB HDD	View deal
165.10	$165.10	1 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	New	Other	Surveillance HDD Purple: C-HDD1000-PUR 1TB Surveillance Hard Drive – 3.5" SATA 6Gb/s, 5400 RPM, 64MB Cache	View deal
173.00	$345.99	2 TB	1	Internal HDD	—	—	—	Surveillance	New	Super	Super HD 1080P 16 Channel H.265 Surveillance DVR, 2TB Hard Drive	View deal
189.99	$189.99	1 TB	1	Internal HDD	—	—	—	Surveillance	New	ZOSI	ZOSI 8CH 1080P H.265+ DVR with 1TB Hard Drive and 2.0MP Outdoor Security Cameras, Instant Alerts, Free App Remote Access	View deal
194.99	$779.97	4 TB	1	Internal HDD	—	—	—	Surveillance	New	Evertech	Evertech 32 Channel 32CH H.265 Hybrid DVR Recorder 4-in1 for HD TVI AHD CVI and Analog 1080P Home Business Security Surveillance Camera Systems + 4TB Hard Drive Memory for 24/7 Recording Remote Access	View deal
199.89	$199.89	1 TB	1	Internal 3.5"	3.5"	SATA	—	Surveillance	New	Seagate	Seagate SkyHawk 1TB Surveillance Hard Drive - Sata 6Gb/s 64MB Cache 3.5-Inch Internal Drive (ST1000VX005)	View deal
204.50	$408.99	2 TB	1	Internal HDD	—	—	—	Surveillance	New	Other	16 Channel Surveillance DVR 5MP H.265, 2TB Hard Drive	View deal
207.98	$103.99	500 GB	1	Internal HDD	—	—	—	Surveillance	New	ZOSI	ZOSI 8CH 1080P Home Security DVR with 500GB Hard Drive, AI Human/Vehicle Detection, Remote Access, H.265+ Hybrid 4-in-1 Wired Surveillance DVR for HD-TVI, CVI, CVBS, AHD 960H/720P/1080P CCTV Cameras	View deal
224.99	$224.99	1 TB	1	Internal HDD	—	—	—	Surveillance	New	Super	Super HD 1080P 8 Channel Surveillance DVR, 1TB Hard Drive	View deal
246.39	$246.39	1 TB	1	Internal 3.5"	3.5"	SATA	5,400 RPM	Surveillance	New	Seagate	SEAGATE Skyhawk 1TB Hard Drive, SATA III, 6 Gbit/s, Cache 256MB, 5400RPM, 3.5 Inches, Video Surveillance	View deal

Price charts

Value map: capacity against price

Each dot is one listing; 8 larger than 21 TB or priced above $200/TB are off the chart. Among drives at or above the median capacity (4 TB), the cheapest is Surveillance HDD 14TB 7200RPM SATA 6Gb/s 128MB Cache 3.5inch Internal Surveil... at $25/TB.

Price per TB by capacity

16 TB drives have the lowest median price per TB here ($31, from 6 listings). Capacities with fewer than 3 listings are left out.

How prices are spread

Half of the 186 listings cost between $38 and $69 per TB; the median is $53. A listing in the left-hand bars is cheap for this category.

How to choose surveillance hard drives

What to look for

Camera count: drive lines are rated for a number of camera streams, and bigger recorders benefit from higher-rated models.
Capacity maths: storage needed depends on camera count, resolution and how many days you keep. Compare the table across capacities.
Use in a NAS: surveillance drives are tuned for writes, not for the random access of a RAID array. A NAS line is a better fit for that.
Warranty and health tools: many surveillance lines include a multi-year warranty and some include health-monitoring features.
Recorder compatibility: check your DVR or NVR supports the capacity you plan to install.

Best for

Home and small-business security recorders that record to a hard drive continuously.

Skip it if

You want general file storage or a NAS drive, where desktop and NAS lines are a better fit.

Surveillance price snapshot

Price per TB by capacity

Capacity	Listings	Cheapest	Median
1 TB	25	$59	$129
2 TB	24	$30	$75
4 TB	28	$38	$51
8 TB	16	$36	$55
12 TB	15	$27	$46
16 TB	6	$28	$30
20 TB	10	$31	$32

Most listed brands

Brand	Listings	Cheapest	Median
Western Digital	56	$37	$57
MDD	49	$26	$33
Seagate	37	$32	$58
Hitachi	5	$30	$33
HGST	5	$32	$33
ZOSI	4	$140	$165
Super	3	$108	$173
SANNCE	3	$126	$129

Quick facts

Middle 80% of prices: $31 to $120 per TB
Typical listing: 4 TB for $220
13 brands with listings here
Median stated spin speed: 7,200 RPM (87 listings state one)
4% state CMR recording
11% are sold as NAS drives

How Surveillance compares

Category	Listings	Cheapest	Median	vs Surveillance
Surveillance (this page)	186	$7	$53	—
Internal	982	$7	$49	−7%
External	535	$21	$58	+9%
Enterprise	393	$16	$39	−27%
8 TB	135	$25	$41	−22%
NAS	140	$25	$46	−13%
All HDDs	1,517	$7	$50	−6%

Median price per TB across current listings. "vs" shows each row's median against Surveillance.

Frequently asked questions

Can I use a normal hard drive in a DVR?

It may work, but surveillance drives are designed for continuous writing, so they are the better match for a recorder that never stops.

Can I use a surveillance drive for a PC?

Yes, it works as a storage drive, though it is tuned for sequential writes and offers no particular benefit over a desktop drive.

How much storage do I need for cameras?

It depends on the number of cameras, their resolution and retention. Use the camera maker's calculator and compare capacities in the table.

What size surveillance hard drive do I need?

It depends on the number of cameras, resolution and how many days you keep footage. Many home systems use 2 TB to 8 TB. Larger drives lower the cost per TB, as the table shows.

How much do surveillance hard drives cost per TB?

Across 186 listings, the middle 80% range from about $31 to $120 per TB, with a median of $53. That is 6% above the all-HDD median of $50 per TB. Prices change often, so check the current price on Amazon before you buy.

What is the cheapest of the surveillance hard drives per TB right now?

At the last update it is DS-7308HUHI-F4/N 8 Channel Hybrid DVR Recorder, Supports TVI/AHD/CVI/CVBS/IP ..., at $7 per TB. The cheapest listing is not always the best buy, so compare warranty, speed and reviews.

Prices and availability are as of 2026-10-28 and may change. Check the current price and specifications on Amazon before you buy. As an Amazon Associate we earn from qualifying purchases.