12 TB RAID rebuild time?

Expect many hours to a day depending on controller and load. Schedule rebuilds when the array is idle and ensure cooling.

Mix 12 TB with smaller drives in NAS?

Synology SHR and similar modes allow it with capacity penalties. Matching sizes is simpler for performance and planning.

How many 12 TB drives are on this page?

We compare 54 12 TB hard drives and SSDs on this page, including nearby capacities within about 5% of 12 TB.

What do 12 TB drives cost on this page?

Among comparable storage drives on this page, prices run from about $210.00 (MDD MAXDIGITALDATA 12TB 7200RPM 256MB Cache SAS 12.0Gb/s 3.5inch Internal Enterprise Hard Drive (MDD12TSAS25672E) - [ NOT a SATA HDD ] (Renewed) (12 TB)) up to $692.00 (Western Digital 12TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD122KRYZ (12 TB)), before shipping or coupons.

What is the 12 TB price per TB on this page?

About $17.50 to $57.67 per TB across 52 drives we use for this summary.

Cheapest 12 TB HDD on this page?

MDD MAXDIGITALDATA 12TB 7200RPM 256MB Cache SAS 12.0Gb/s 3.5inch Internal Enterprise Hard Drive (MDD12TSAS25672E) - [ NOT a SATA HDD ] (Renewed) (12 TB) at $210.00 (about $17.50 per TB).

12 TB hard drive prices

High-density disks for eight-bay NAS and rack-adjacent homelabs

We compare 54 12 TB hard drives and SSDs from retailers we track. Checkout prices at Amazon and other stores can differ from what we last recorded.

12 TB hard drive prices

Prices last updated: August 14, 2026

Drives we compare: 54
Hard drives (HDD): 54
Cheapest hard drive per TB: $17.50 per TB: MDD MAXDIGITALDATA 12TB 7200RPM 256MB Cache SAS 12.0Gb/s 3.5inch Internal Enterprise Hard Drive (MDD12TSAS25672E) - [ NOT a SATA HDD ] (Renewed) (12 TB) at $210.00
12 TB price per TB range: $17.50 to $57.67

Best value 12 TB drives

MDD MAXDIGITALDATA 12TB 7200RPM 256MB Cache SAS 12.0Gb/s 3.5inch Internal Enterprise Hard Drive (MDD12TSAS25672E) - [ NOT a SATA HDD ] (Renewed) (12 TB) at $210.00 ($17.50 per TB)
Dell/Seagate Exos X18 12TB ST12000NM006J 7200 RPM SAS 12Gb/s 512e 3.5in Enterprise Hard Drive (Renewed) (12 TB) at $252.00 ($21.00 per TB)
HGST Ultrastar DC HC520 HDD 12TB 7200 RPM SAS 12Gb/s Interface 3.5-Inch 512e ISE Helium Data Center Enterprise Internal Hard Disk Drive HUH721212AL5200 (Renewed) (12 TB) at $285.00 ($23.75 per TB)
MDD 12TB 7200RPM SATA 6Gb/s 256MB Cache 3.5inch Internal Desktop Hard Drive, MD12TBGSA25672 (12 TB) at $299.00 ($24.92 per TB)

12 TB hard drive buying guide

Who a 12 TB drive is for

12 TB is common in enthusiast NAS builds, creative studios keeping proxied archives local, and backup targets that must swallow full 8 TB sibling drives.

12 TB hard drive vs SSD

HDDs usually dominate. SSD alternatives at 12 TB are priced for data-center budgets, not typical homelab price per TB targets.

What to look for in a 12 TB drive

Helium drives and motor acoustics in enclosed furniture.
Error recovery control settings, some NAS vendors tweak timeouts for large disks.
Enterprise vs NAS retail warranty and support channels.
Shipping damage risk on bare drives, buy from sellers with solid pack jobs.

How we compare 12 TB prices

When 12 TB price per TB undercuts 10 TB, it is often worth standardizing a pool on the larger size for fewer future expansions.

12 TB price per TB on this page

Among 52 drives we compare on this page, price per TB runs from about $17.50 to $57.67. Checkout totals and coupons can differ.

Compare all 12 TB hard drive prices

Showing 1 to 50 of 54 drives

Page 1 of 2


$210	$17.5	12 TB	Renewed	5 years	MDD MAXDIGITALDATA 12TB 7200RPM 256MB Cache SAS 12.0Gb/s 3.5inch Internal Enterprise Hard Drive (MDD12TSAS25672E) - [ NOT a SATA HDD ] (Renewed) (12 TB)	MDD	Internal	SAS
$252	$21	12 TB	Renewed	3 months	Dell/Seagate Exos X18 12TB ST12000NM006J 7200 RPM SAS 12Gb/s 512e 3.5in Enterprise Hard Drive (Renewed) (12 TB)	Dell/Seagate	Internal	SAS
$285	$23.75	12 TB	Renewed	3 months	HGST Ultrastar DC HC520 HDD 12TB 7200 RPM SAS 12Gb/s Interface 3.5-Inch 512e ISE Helium Data Center Enterprise Internal Hard Disk Drive HUH721212AL5200 (Renewed) (12 TB)	HGST	Internal	SAS
$299	$24.92	12 TB	New	3 years	MDD 12TB 7200RPM SATA 6Gb/s 256MB Cache 3.5inch Internal Desktop Hard Drive, MD12TBGSA25672 (12 TB)	MDD	Internal 3.5"	HDD
$300	$25	12 TB	Renewed	2 years	Avolusion PRO-5Y Series 12TB USB 3.0 External Hard Drive for WindowsOS Desktop PC/Laptop (White) (Renewed) (12 TB)	Avolusion	External 3.5"	HDD
$309	$25.75	12 TB	New	0 months	Seagate Exos X14 SED 12TB ST12000NM0248 3.5" SATA 6GB/S (12 TB)	Seagate	Internal 3.5"	HDD
$312	$26	12 TB	Renewed	3 months	DELL 12TB 7.2K RPM SATA 6Gb/s 512e 3.5in Enterprise PowerEdge Hard Drive for: R440 R750 R450 T150 R470 T560 T40 R250 R740 R640 T550 T350 R540 R840 ME4024 R650XS R550 0V308G G16 (Renewed) (12 TB)	DELL	Internal 3.5"	HDD
$312	$26	12 TB	Renewed	3 months	Dell/Seagate Exos X16 12TB ST12000NM005G 7.2K RPM SATA 6Gb/s 512e 3.5" Enterprise Hard Drive (Renewed) (12 TB)	Dell/Seagate	Internal 3.5"	HDD
$316	$26.33	12 TB	Renewed	2 years	Western Digital Ultrastar DC HC520 12TB SATA 6Gb/s 3.5-Inch Data Center HDD - HUH721212ALE600 0F29590 (Renewed) (12 TB)	Western Digital	Internal 3.5"	HDD
$323	$26.92	12 TB	New	0 months	Seagate Expansion 12TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP12000400) (12 TB)	Seagate	External 3.5"	HDD
$329	$27.42	12 TB	Renewed	3 months	HP/HGST Ultrastar DC HC520 HUH721212AL5204 0F29534 12TB 7200 RPM SAS 12Gb/s 512e 3.5in Enterprise Hard Drive MB012000JWDFD 868210-001 (Renewed) (12 TB)	HP/HGST	Internal	SAS
$330	$27.5	12 TB	Renewed	5 years	MDD MAXDIGITALDATA (MDD12TSATA25672E) 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Enterprise Hard Drive (Renewed) (12 TB)	MDD	Internal 3.5"	HDD
$330	$27.5	12 TB	Renewed	3 months	HGST 12TB Ultrastar DC HC520 SATA 6Gb/s 7200RPM 3.5-inch 256MB Cache HUH721212ALE604 0F29592, with Power Disable Feature (Renewed) (12 TB)	HGST	Internal 3.5"	HDD
$333	$27.75	12 TB	Renewed	3 months	HGST WD Ultrastar DC HC520 HUH721212AL4200 12TB HDD 7200 RPM SAS 12Gb/s Interface 4Kn ISE 3.5-Inch Helium Data Center Enterprise Internal Hard Disk Drive HDD (Renewed) (12 TB)	HGST	Internal	SAS
$339	$28.25	12 TB	Renewed	3 months	DELL 12TB 7.2K RPM SAS 12Gb/s 512e 3.5in Enterprise Hard Drive for PowerEdge R730, R720, R710, R520, R530, R630, R430, T630, T710, R220, R720XD, R510, R530XD, R730XD 00JHTD G13 (Renewed) (12 TB)	DELL	Internal	SAS
$339	$28.25	12 TB	Renewed	3 months	DELL 12TB 7.2K RPM SAS 12Gb/s 512e 3.5in Enterprise PowerEdge Hard Drive for: R440 R750 R450 T150 R470 T560 T40 R250 R740 R640 T550 T350 R540 R840 ME4024 R650XS R550 00JHTD G16 (Renewed) (12 TB)	DELL	Internal	SAS
$340	$28.33	12 TB	Used	3 months	HGST Ultrastar He12 \| HUH721212ALE601 \| 0F27454 \| 12TB 7200 RPM 256MB SATA 6.0Gb/s 3.5" Cache \| 512E \| BitLocker Hard Drive Encryption \| Power Disable Function \| (12 TB)	HGST	Internal 3.5"	HDD
$340	$28.33	12 TB	Used	3 years	MDD MAXDIGITALDATA 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance Storage (MD12TBGSA25672DVR) - 3 Years Warranty (12 TB)	MDD	Internal 3.5"	HDD
$340	$28.33	12 TB	Renewed	5 years	MDD (MDD12TSATA25672NAS) 12TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal NAS Hard Drive - 5 Years Warranty (Renewed) (12 TB)	MDD	Internal 3.5"	HDD
$350	$29.17	12 TB	Renewed	3 months	Seagate Exos X16 ST12000NM001G 12 TB Hard Drive - Internal - SATA (SATA/600) (Renewed)	Seagate	Internal 3.5"	HDD
$350	$29.17	12 TB	Renewed	5 years	MDD MAXDIGITALDATA MDD - HC520 HUH721212ALE601 12TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5-inch Enterprise Hard Drive - 5 Year Warranty (Renewed) (12 TB)	MDD	Internal 3.5"	HDD
$351	$29.25	12 TB	Renewed	3 months	Western Digital WD Purple 12TB Surveillance Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD121PURZ (Renewed) (12 TB)	Western Digital	Internal 3.5"	HDD
$355	$29.58	12 TB	New	5 years	Enterprise C EXOS X18 12TB 3.5IN 7200RPM SAS Helium 512E (12 TB)	Enterprise	Internal	SAS
$358	$29.83	12 TB	New	0 months	WD-40 Ultrastar HE12 12TB SAS 512E (12 TB)	WD-40	Internal	SAS
$360	$30	12 TB	Renewed	3 months	TOSHIBA Internal Hard Disk Server for NAS 3.5" Enterprise HDD 12TB SATA 6 Gbit/s 7200rpm 3 Year Warranty MG07ACA12TE (Renewed) (12 TB)	TOSHIBA	Internal 3.5"	HDD
$370	$30.83	12 TB	Renewed	3 months	Seagate Exos x12 12TB SATA 6Gb/s 256MB Cache Enterprise Hard Drive 3.5in (ST12000NM0007) (Renewed) (12 TB)	Seagate	Internal	SAS
$370	$30.83	12 TB	Renewed	2 years	Seagate 12TB HDD Exos X14 SATA 6Gb/s 512e 7200RPM 3.5" Enterprise Hard Drive (Renewed) (12 TB)	Seagate	Internal 3.5"	HDD
$389	$32.42	12 TB	New	0 months	DELL 12TB 7.2K RPM SAS 12Gb/s 512e 3.5in Enterprise PowerEdge Hard Drive For: R440 R750 R450 T150 R470 T560 T40 R250 R740 R640 T550 T350 R540 R840 ME4024 R650XS R550 R650 R350 R340 R660XS 400-AXLN G16 (12 TB)	DELL	Internal	SAS
$429	$35.75	12 TB	New	3 years	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	Seagate	Internal 3.5"	HDD
$434	$36.17	12 TB	New	5 years	Western Digital HGST/Western Digital - 0F29590 - HGST Ultrastar He12 HUH721212ALE600 12 TB Hard Drive - 3.5 Internal - SATA (SATA/600) - 7200rpm - 256 MB Buffer - 5 Year Warranty	Western Digital	Internal 3.5"	HDD
$438	$36.5	12 TB	New	5 years	HGST WD Ultrastar DC HC520 HUH721212AL4200 12TB HDD 7200 RPM SAS 12Gb/s Interface 4Kn ISE 3.5-Inch Helium Data Center Enterprise Internal Hard Disk Drive, Model: 0F29560 (12 TB)	HGST	Internal	SAS
$450	$37.5	12 TB	New	0 months	DELL 12TB 7.2K RPM SAS 12Gb/s 512e 3.5in Enterprise PowerEdge Hard Drive for: R440 R750 R450 T150 R470 T560 T40 R250 R740 R640 T550 T350 R540 R840 ME4024 R650XS R550 R650 R350 R340 R660XS 0K29Y6 G16 (12 TB)	DELL	Internal	SAS
$450	$37.5	12 TB	Used	2 years	Western Digital 12TB WD Blue Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD120EAGZ (12 TB)	Western Digital	Internal 3.5"	HDD
$450	$37.5	12 TB	Used	3 years	DELL 0M1C0T 12TB 7.2K RPM SAS 12Gb/s 512e 3.5in Enterprise Hard Drive Compatible with but not Limited to: R540 R740 T550 R660 T150 T560 MD3400 C6620 MX5016s G14 G15 G16 (12 TB)	DELL	Internal	SAS
$460	$38.33	12 TB	New	5 years	Seagate Skyhawk AI 12TB Video Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 256MB Cache for DVR NVR Security Camera System with in-House Rescue Services – Frustration Free Packaging (ST12000VE003) (12 TB)	Seagate	Internal 3.5"	HDD
$480	$40	12 TB	New	1 year	Seagate Exos X24 12TB 3.5" 6 Gb/s SATA III Internal Hard Drive (12 TB)	Seagate	Internal 3.5"	HDD
$499	$41.58	12 TB	New	5 years	Seagate ST12000NM002G 12TB 12Gb/s SAS HDD (12 TB)	Seagate	Internal	SAS
$500	$41.67	12 TB	New	0 months	Seagate IronWolf 12TB, Interne Harde Schijf, voor NAS RAID, NAS, 3.5", SATA 6 GB/s, 7200 RPM, 265 MB cache, FFP, Data Rescue Service (ST12000VNZ008) (12 TB)	Seagate	Internal 3.5"	HDD
$505	$42.08	12 TB	Renewed	2 years	Western Digital Dell Ultrastar DC HC520 HUH721212ALE600 0F29595 12TB 7.2K RPM SATA CMR 6Gb/s 512e 256 MB Cache 3.5in Enterprise HDD (Renewed) (12 TB)	Western Digital	Internal 3.5"	HDD
$520	$43.33	12 TB	Used	5 years	Seagate Exos 12TB Internal Hard Drive Enterprise HDD – 3.5 Inch 6Gb/s 128MB Cache for Enterprise, Data Center – Frustration Free Packaging (ST12000NM0007) (12 TB)	Seagate	Internal	SAS
$530	$44.17	12 TB	New	2 years	Western Digital 12TB Elements Desktop External Hard Drive, USB 3.0 external hard drive for plug-and-play storage - Western DigitalBWLG0120HBK-NESN (12 TB)	Western Digital	External 3.5"	HDD
$534	$44.5	12 TB	New	0 months	HGST Ultrastar He12 HUH721212AL4201 12 TB Hard Drive - SAS [12Gb/s SAS] - 3.5 Drive - Internal	HGST	Internal	SAS
$544	$45.33	12 TB	New	5 years	Seagate Exos 12TB 3.5 7200RPM 256MB SAS 12GB s Enterprise Bare HDD ST12000NM0027 (12 TB)	Seagate	Internal	SAS
$573	$47.75	12 TB	New	3 years	Seagate Skyhawk 12TB Surveillance Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 256MB Cache for DVR NVR Security Camera System with Drive Health Management – Frustration Free Packaging (ST12000VX0008) (12 TB)	Seagate	Internal 3.5"	HDD
$600	$50	12 TB	New	5 years	SanDisk Professional 12TB G-Drive Project - External HDD, Thunderbolt 3, USB (10Gbps), 7200RPM Ultrastar Hard Drive, Up to 250MB/s Read - SDPHG1H-012T-NBAAD (12 TB)	SanDisk	External 3.5"	HDD
$619	$51.58	12 TB	Used	0 months	Western Digital 12TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD121PURZ (12 TB)	Western Digital	Internal 3.5"	HDD
$649	$54.08	12 TB	Used	5 years	Western Digital 12TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD121KRYZ (12 TB)	Western Digital	Internal 3.5"	HDD
$649	$54.08	12 TB	New	5 years	Seagate IronWolf Pro 3.5" 12TB HDD with Data Recovery Service 5 Year Warranty 256MB 7200rpm 24 Hours Service for PC NAS RV Sensor ST12000NE0008 (12 TB)	Seagate	Internal 3.5"	HDD
$650	$54.17	12 TB	New	0 months	HGST 12TB HDD 7.2K RPM 3.5" 12Gb/s SAS Hard Disk Drive Model: HUH721212AL5200 DP/N: 9HXK6 (12 TB)	HGST	Internal	SAS
$654	$54.5	12 TB	New	5 years	Seagate Exos X14 ST12000NM0038 12 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS)	Seagate	Internal	SAS

Showing 1 to 50 of 54 drives

Page 1 of 2

Showing 50 drives per page. Use the pager at the top or bottom of the table, or open the full hard drive price comparison to shop every size at once.

12 TB hard drive questions

12 TB RAID rebuild time?
Expect many hours to a day depending on controller and load. Schedule rebuilds when the array is idle and ensure cooling.
Mix 12 TB with smaller drives in NAS?
Synology SHR and similar modes allow it with capacity penalties. Matching sizes is simpler for performance and planning.
How many 12 TB drives are on this page?
We compare 54 12 TB hard drives and SSDs on this page, including nearby capacities within about 5% of 12 TB.
What do 12 TB drives cost on this page?
Among comparable storage drives on this page, prices run from about $210.00 (MDD MAXDIGITALDATA 12TB 7200RPM 256MB Cache SAS 12.0Gb/s 3.5inch Internal Enterprise Hard Drive (MDD12TSAS25672E) - [ NOT a SATA HDD ] (Renewed) (12 TB)) up to $692.00 (Western Digital 12TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD122KRYZ (12 TB)), before shipping or coupons.
What is the 12 TB price per TB on this page?
About $17.50 to $57.67 per TB across 52 drives we use for this summary.
Cheapest 12 TB HDD on this page?
MDD MAXDIGITALDATA 12TB 7200RPM 256MB Cache SAS 12.0Gb/s 3.5inch Internal Enterprise Hard Drive (MDD12TSAS25672E) - [ NOT a SATA HDD ] (Renewed) (12 TB) at $210.00 (about $17.50 per TB).