Seagate

Seagate Exos X14 14TB SATA Enterprise

ST14000NM0018
Exos X14nearlineCMR14TBSATA-6G3.5"
$38.88/TB
$544.37
newIn Stock
Price updated
Price accurate as of Sep 17, 2026, 11:01 AM
Buy on Amazon →

The Seagate Exos X14 14TB SATA Enterprise is a 14TB SATA-6G HDD in new condition. It is in stock at $544.37 - $38.88/TB.

Part number: ST14000NM0018 — decoded, with sibling variants and the warranty check.

Same capacity, other options
DriveInterfaceCond$/TBPrice
MDD 14TB SATA 6G 7200RPM 256MB EnterpriseSATA-6GRefurb$24.29$339.99Buy
WD Ultrastar 14TB SATA WUH721414ALE604SATA-6GRefurb$24.29$339.99Buy
WD Ultrastar 14TB SATA WUH721414ALE6L4SATA-6GRefurb$25.00$349.99Buy
WD Ultrastar 14TB SATA WUH721414ALE604SATA-6GRefurb$25.71$359.99Buy

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

Model context

Part of the Seagate line we track.

Quick Verdict

The Seagate Exos X14 14TB SATA Enterprise is a 14TB SATA-6G enterprise drive at $38.88/TB - CMR recording makes it safe for all RAID levels and NAS deployments. New unit with full 5-year warranty.

Share:WhatsAppFacebookPost on X

Specifications

Capacity14TB
Form Factor3.5"
InterfaceSATA-6G
Recording TechCMR
RPM7200
Cache256MB
Sector Size512e
Workload Rating550TB/yr
Warranty5 years
ASINB07RQZJ347
Market context

Against every other drive we have an in-stock price for today, this one is cheaper per tb than 45% of them (110 of 243). The cheapest we can currently buy is $14.99/TB; the middle of the market is $36.87/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 SATA-6G
#1WD Ultrastar DC HC530 14TB SATA 4Kn NAS
$17.14/TB
#2WD Ultrastar DC HC530 14TB SATA 4Kn NAS
$20.00/TB
#3Toshiba MG07ACA14TE 14TB SATA Enterprise
$22.07/TB
#4MDD 14TB SATA 6G 7200RPM 256MB Enterprise
$24.29/TB
#5WD Ultrastar 14TB SATA WUH721414ALE604
$24.29/TB

Works in these NAS machines

Asustor (6 NAS series)
Vendor-listed
On Asustor's list as Exos X14 ST14000NM0018
UniFi UNAS / UNVR
Fit-verified
Meets Ubiquiti's written 1TB+ CMR requirement; check the 7200RPM clause

Resolved against manufacturer compatibility lists we read and dated, capped at 4. Vendor-listed means the manufacturer names this exact part number; fit-verified is our own check of form factor, interface and recording technology against a published requirement. Neither is a guess, and a drive the registry cannot resolve shows nothing here rather than a maybe. How compatibility actually works

Frequently Asked Questions

Yes. The Exos X14 14TB SATA Enterprise 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, NAS or workstation with a SATA port. Works in Synology, QNAP, TrueNAS, UnRAID and all major NAS 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 SATA drives are ideal for backup targets. SATA gives maximum $/TB for backup repositories.
🏗️
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. SATA is fine for single-host VM 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 Seagate 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: Loose SATA data or power cable, failed port, or drive not spinning up.
Fix: Reseat both cables. Try a different port. Listen for spin-up sound. Test with a known-good cable.