WD 12TB SAS Enterprise HDD - Prices

5 WD 12TB SAS hard drives tracked. Prices from $31.96/TB. Updated about once a day.

Buy or Skip?

✓ Buy if: you want 14% below-average pricing on 12TB WD drives. These are datacenter pulls - verify SMART data on arrival.

✗ Skip if: you require new-only drives for production RAID or need guaranteed OEM warranty - consider new alternatives.

Buy on Amazon $383.55

Best $/TB

$31.96

Drives

Condition

New + Refurb

At $31.96/TB, WD 12TB SAS drives are $13.00/TB cheaper than the 12TB SAS category average of $44.96/TB — strong value at this capacity.

WD 12TB SAS - should you buy?

WD Ultrastar 12TB SAS drives are the reliability benchmark for enterprise HDD. Hyperscale datacenter pulls at $31.96/TB offer exceptional value.

Condition

Capacity

4 of 4 part numbers

						Buy
$31.96 Lowest $/TB	WD Ultrastar 12TB SAS HUH721212AL4200 HUH721212AL4200	12TB SAS-12G	Not sourced	$383.55	Refurb	Buy on Amazon
Part number:HUH721212AL4200 RPM:7200 Cache:— Sector:4Kn Workload:— DWPD:— Form factor:3.5" Series:Ultrastar HC520 ASIN:B07ZHNRHMM Warranty:not stated by a source This offer, in its own words (the seller's note is verbatim): This offer: sold by Redefine IT · Amazon says New / New · title says Renewed Full page for this listing
$32.42 ~ 30d avg	WD Ultrastar 12TB SAS HUH721212AL5204 HUH721212AL5204	12TB SAS-12G	Not sourced	$389.00	Refurb	Buy on Amazon
Part number:HUH721212AL5204 RPM:7200 Cache:— Sector:512e Workload:— DWPD:— Form factor:3.5" Series:Ultrastar HC520 ASIN:B0GVGFSNGW Warranty:not stated by a source This offer, in its own words (the seller's note is verbatim): This offer: sold by ServerPartDeals · Amazon says New / New · title says Renewed Full page for this listing
$37.27 ~ 30d avg	WD Ultrastar 12TB SAS HUH721212AL5200 HUH721212AL5200	12TB SAS-12G	Not sourced	$447.24	Refurb	Buy on Amazon
Part number:HUH721212AL5200 RPM:7200 Cache:— Sector:512e Workload:— DWPD:— Form factor:3.5" Series:Ultrastar HC520 ASIN:B07SXVQ5WD Warranty:not stated by a source This offer, in its own words (the seller's note is verbatim): This offer: sold by Redefine IT · Amazon says New / New · title says Renewed Full page for this listing
$47.87 ~ 30d avg	WD Ultrastar 12TB SAS HUH721212AL4201 HUH721212AL4201	12TB SAS-12G	Not sourced	$574.45	New	Buy on Amazon
Part number:HUH721212AL4201 RPM:— Cache:— Sector:4Kn Workload:— DWPD:— Form factor:3.5" Series:Ultrastar He12 ASIN:B074JHYMKF Warranty:not stated by a source This offer, in its own words (the seller's note is verbatim): This offer: sold by Brute Networks Corporation · Amazon says New / Unknown Full page for this listing

$31.96/TB$383.55
WD Ultrastar 12TB SAS HUH721212AL4200
HUH721212AL4200
12TB · SAS-12G
Refurb
Buy on Amazon
$32.42/TB$389.00
WD Ultrastar 12TB SAS HUH721212AL5204
HUH721212AL5204
12TB · SAS-12G
Refurb
Buy on Amazon
$37.27/TB$447.24
WD Ultrastar 12TB SAS HUH721212AL5200
HUH721212AL5200
12TB · SAS-12G
Refurb
Buy on Amazon
$47.87/TB$574.45
WD Ultrastar 12TB SAS HUH721212AL4201
HUH721212AL4201
12TB · SAS-12G
New
Buy on Amazon

Guides for this capacity: best 12TB hard drive · the HDD price forecast · fill a NAS at today's prices

Other WD SAS capacities

8TB 10TB 12TB 14TB 16TB

Other brands at 12TB SAS

HGST HP Seagate Synology TDSourcing WD

Frequently Asked Questions

4 in-stock listings out of 5 tracked; the cheapest is the WD Ultrastar 12TB SAS HUH721212AL4200 at $383.55 ($31.96/TB). The table on this page is the live ranking.

Both are in stock: 1 new and 3 recertified or used. The cheapest new is the WD Ultrastar 12TB SAS HUH721212AL4201 at $574.45, the cheapest recertified or used the WD Ultrastar 12TB SAS HUH721212AL4200 at $383.55 - a 33% shelf gap between two different models, not a like-for-like discount. New carries the manufacturer's warranty; recertified a reseller's.

None of the 5 tracked listings (including the WD Ultrastar 12TB SAS HUH721212AL5205) has a manufacturer-sourced recording value yet, so this page states none - an unsourced drive is never assumed CMR.

Use Case Scenarios

🏠

Home & SMB NAS

Building a high-capacity NAS for media, backups and file sharing.

✓ Excellent fit

Verify CMR recording before using in RAID. Refurb units offer strong value for non-critical NAS.

💾

Backup Server / Veeam Target

Dedicated backup storage for Veeam, Commvault, or NetBackup.

✓ Excellent fit

12TB SAS drives are ideal for backup targets. Dual-port SAS suits dual-path backup infrastructure.

🏗️

Virtualization Host Storage

VM images and snapshots on Proxmox, VMware or Hyper-V.

~ Good fit

Suitable for VM storage where workloads are not IOPS-intensive. SAS dual-port suits HA cluster shared storage. Consider NVMe cache for latency-sensitive VMs.

Maintenance & Troubleshooting

Maintenance Checklist

On installCheck SMART baseline on arrival

Run smartctl -a /dev/sdX and record: Reallocated_Sector_Ct, Power_On_Hours, Spin_Retry_Count. Critical for refurb drives — refuse any with reallocated sectors > 0.

MonthlyRun SMART short self-test

smartctl -t short /dev/sdX — takes 1-2 minutes, catches most developing issues. Schedule during off-peak.

QuarterlyRun SMART long self-test

smartctl -t long /dev/sdX — full surface scan, takes 6 hours for 12TB. Any test failure is grounds for immediate replacement.

QuarterlyCheck RAID array health

Verify no degraded drives. A degraded array with no hot spare is one failure from data loss. Check mdstat or controller UI.

AnnuallyVerify drive firmware version

Check WD support site for firmware updates. Some versions have known bugs affecting integrity.

Every 3-5 yearsPlan proactive replacement

Enterprise HDDs have higher failure rates after year 4-5. At 12TB per drive, budget for replacements before failures occur.

Troubleshooting Guide

Cause: HBA not initialized, SAS expander issue, cable fault, or incompatible controller.

Fix: Verify HBA firmware. Check SAS topology with sas2ircu or StorCLI. Test with known-good cable. Confirm drive is SAS not SATA.