WD

WD Ultrastar 14TB SAS WUH721414AL5204

WUH721414AL5204
Ultrastar HC530nearlineCMR14TBSAS-12G3.5"
$42.25/TB
$591.45
newIn Stock
Price updated
Price accurate as of Sep 3, 2026, 09:31 PM
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The WD Ultrastar 14TB SAS WUH721414AL5204 is a 14TB SAS-12G HDD in new condition. It is in stock at $591.45 - $42.25/TB.

Part number: WUH721414AL5204 — decoded, with sibling variants and the warranty check.

Before you buy: this is a SAS drive

SAS drives do not plug into a normal SATA motherboard port. You need a SAS host bus adapter or a backplane that speaks SAS - an LSI/Broadcom HBA in IT mode is the usual answer. A SATA drive will run on a SAS controller, but not the other way round. HBA and IT-mode guide

Same capacity, other options
DriveInterfaceCond$/TBPrice
Toshiba MG07ACA14TE 14TB SATA EnterpriseSATA-6GRefurb$22.79$319.00Buy
MDD 14TB SATA 6G 7200RPM 256MB EnterpriseSATA-6GRefurb$23.57$329.99Buy
WD Ultrastar 14TB SATA WUH721414ALE604SATA-6GRefurb$24.29$339.99Buy
WD Ultrastar 14TB SATA WUH721414ALE6L4SATA-6GRefurb$25.00$349.99Buy

All 14TB drives we track, ranked by cost per terabyte.

Model context

Part of the WD line we track.

Quick Verdict

The WD Ultrastar 14TB SAS WUH721414AL5204 is a 14TB SAS-12G enterprise drive at $42.25/TB - CMR recording makes it safe for all RAID levels and NAS deployments. New unit with full 5-year warranty.

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Specifications

Capacity14TB
Form Factor3.5"
InterfaceSAS-12G
Recording TechCMR
RPM7200
Cache512MB
Sector Size512e
Workload Rating550TB/yr
Warranty5 years
ASINB08JKBXLWF
Market context

Against every other drive we have an in-stock price for today, this one is cheaper per tb than 69% of them (169 of 246). The cheapest we can currently buy is $14.99/TB; the middle of the market is $36.02/TB.

Where the wider market has moved

These are third-party figures about the retail market as a whole, quoted and dated. They are not our own measurements and they do not describe this specific drive.

Compare against every 14TB drive we track →Cheapest per terabyte, all categories →Category price trends →
How it compares - 14TB SAS-12G
#1WD Ultrastar 14TB SAS
$31.43/TB
#2WD Ultrastar 14TB SAS WUH721414AL5204THIS DRIVE
$31.43/TB
#3WD Ultrastar 14TB SAS
$40.82/TB
#4WD Ultrastar 14TB SAS WUH721414AL5204THIS DRIVE
$42.25/TB
#5WD Ultrastar 14TB SAS
$42.46/TB

Frequently Asked Questions

Yes. The Ultrastar 14TB SAS WUH721414AL5204 uses CMR recording which is fully compatible with all RAID levels. It is rated for 550TB/year workload.

5-year manufacturer warranty.

Compatible with any server or workstation equipped with a SAS HBA or SAS backplane. Tested with Dell PowerEdge, HPE ProLiant, Supermicro and IBM System x platforms.

Use Case Scenarios

🏠
Home & SMB NAS
Building a high-capacity NAS for media, backups and file sharing.
✓ Excellent fit
CMR recording is RAID-safe and fully compatible with Synology, QNAP, TrueNAS and UnRAID. New drives come with full warranty.
💾
Backup Server / Veeam Target
Dedicated backup storage for Veeam, Commvault, or NetBackup.
✓ Excellent fit
14TB 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. Establishes baseline for future comparison.
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 7 hours for 14TB. 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 14TB 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.