WD

WD WD Gold 18TB

WD Gold 18TB
WD GoldCMR18TBSATA-6G3.5"
$44.39/TB
$799.00
REFURBNot available
Price updated
Price accurate as of Aug 14, 2026, 03:31 PM
No current offer
In stock instead - nearest to 18TB

6 in-stock listings · this listing has no current offer on Amazon · ranked by live cost per tb, refreshed every few hours

DriveCapacityInterfaceRecordingCondition$/TBPrice
MDD 18TB SATA 6G 7200RPM NAS
MD18TSATA25672NAS
18TBSATA-6GCMRREFURB$25.00$450Buy
MDD 18TB SATA 7200RPM NAS
MDD18TS25672NAS
18TBSATA-6GCMRREFURB$25.56$460Buy
MDD 18TB SATA 7200RPM Enterprise
MDD18TSATA25672E
18TBSATA-6GCMRREFURB$26.11$470Buy
WD WD Purple 18TB WD180PURZ
WD180PURZ
18TBSATA-6GREFURB$28.64$515Buy
WD DC HC550 18TB SATA 512MB Enterprise
WUH721818ALE6L4
18TBSATA-6GEPMRREFURB$28.89$520Buy
WD WD Red Pro 18TB WD181KFGX
WD181KFGX
18TBSATA-6GCMRREFURB$31.06$559Buy
Quick Verdict

The WD WD Gold 18TB is a 18TB SATA-6G enterprise drive at $44.39/TB - CMR recording makes it safe for all RAID levels and NAS deployments. As a refurbished unit, run SMART diagnostics on arrival and verify power-on hours.

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Specifications

Capacity18TB
Form Factor3.5"
InterfaceSATA-6G
Recording TechCMR
RPM7200
Cache
Sector Size
Workload Rating
Warranty5 years
ASINB09PZF7LCW
Market context

We do not have enough in-stock comparators of this type today to place this price against the rest of the market. The category page below ranks everything we do have.

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 18TB drive we track →Cheapest per terabyte, all categories →Category price trends →
How it compares - 18TB SATA-6G
#1WD Ultrastar DC HC550 18TB SATA
$17.17/TB
#2Toshiba MG09 18TB SATA Enterprise
$20.56/TB
#3Toshiba MG09 18TB SATA
$22.22/TB
#4MDD 18TB SATA 6G 7200RPM NAS
$25.00/TB
#5MDD 18TB SATA 7200RPM NAS
$25.56/TB

Frequently Asked Questions

Yes. The WD Gold 18TB uses CMR recording which is fully compatible with all RAID levels.

5-year manufacturer warranty. This listing is a refurbished/renewed unit - verify seller warranty before purchase.

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. Refurb units offer strong value for non-critical NAS.
💾
Backup Server / Veeam Target
Dedicated backup storage for Veeam, Commvault, or NetBackup.
✓ Excellent fit
18TB SATA drives are ideal for backup targets. SATA gives maximum $/TB for backup repositories.
☁️
Object Storage / Cold Data Tier
High-density storage for MinIO, Ceph or Hadoop at scale.
✓ Excellent fit
At 18TB per drive, a 60-bay JBOD delivers 1080TB raw — enough for petabyte-scale object storage.

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 9 hours for 18TB. 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 18TB 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.