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WD Red Pro 20TB WD201KFGX

WD201KFGX
WD Red PronasCMR20TBSATA-6G3.5"
$40.00/TB
$799.99
REFURBIn Stock
This offer: sold by ALL4COMPUTERS ----- SIGNATURE REQUIRED ----- · Amazon says Used / Good · ALL4COMPUTERS ----- SIGNATURE REQUIRED -----'s note: 5 YEAR DEALER WARRANTY - 100% SATISFACTION GUARANTEED.
Price updated
Price accurate as of Nov 2, 2026, 12:00 AM
Buy on Amazon

The WD Red Pro 20TB WD201KFGX is a 20TB SATA-6G HDD in used condition. It is in stock at $799.99 - $40.00/TB.

Where this listing sits: every 20TB hard drive · 20TB SATA drives · WD 20TB SATA — each page is the live ranking for that slice of the catalogue.

This is a refurbished or recertified listing

Recertified enterprise drives are pulled from datacentre fleets, tested and resold. They are usually the cheapest route to bulk capacity, and the risk is concentrated in the first weeks - so check SMART data the day it arrives rather than the day you need it. What recertified means · Refurbished warranty terms · Verify on arrival

Same capacity, other options
DriveInterfaceCond$/TBPrice
WD Ultrastar 20TB SATA WUH722020ALE604SATA-6GRefurb$31.50$630.00Buy on Amazon
MDD 20TB SATA 7200RPM NASSATA-6GRefurb$32.50$649.99Buy on Amazon
MDD 20TB SATA 7200RPM NASSATA-6GNew$32.50$649.99Buy on Amazon
Seagate IronWolf Pro 20TB NASSATA-6GNew$44.00$879.99Buy on Amazon

All 20TB drives we track, ranked by cost per terabyte.

Model context

CMRSource: WD Red Pro NAS HDD data sheet Recording technology for this model

Part of the WD line we track.

Quick Verdict

The WD Red Pro 20TB WD201KFGX is a 20TB SATA-6G enterprise drive at $40.00/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

Capacity20TB
Form Factor3.5"
InterfaceSATA-6G
Recording TechCMRsource
RPM7200
Cache512MB
Sector Size—
Workload Rating550TB/yr
Warranty5 years
ASINB09TBF6GHJ
Market context

Against every other drive we have an in-stock price for today, this one is cheaper per tb than 46% of them (111 of 243). The cheapest we can currently buy is $14.99/TB; the middle of the market is $38.33/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 20TB drive we track →Cheapest per terabyte, all categories →Category price trends →
How it compares - 20TB SATA-6G
#1MDD 20TB SATA 7200RPM NAS
$32.50/TB
#2MDD 20TB SATA 7200RPM NAS
$32.50/TB
#3WD Red Pro 20TB WD201KFGXTHIS DRIVE
$40.00/TB
#4WD Red Pro 20TB WD202KFGX
$42.17/TB
#5Seagate IronWolf Pro 20TB NAS
$44.00/TB

Works in these NAS machines

TerraMaster (32 machines)
Vendor-listed
On TerraMaster's list - Recommended
Asustor (15 NAS series)
Vendor-listed
On Asustor's list as Red Pro WD201KFGX
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

Also appears in

Other pages
SATA hard drives
Price per terabyte
CMR or SMR
NAS hard drives
Recertified
Hard drives by capacity
By workload

Frequently Asked Questions

Yes. At our last check it was $799.99 ($40.00 per terabyte at its 20TB capacity), sold used under ASIN B09TBF6GHJ. Amazon sets the final price at checkout.

Amazon reports this listing (WD201KFGX) as used, and its title makes no renewed or recertified claim, so the unit's origin is whatever the seller's note says - shown beside the price. The stored warranty on this row is 5 years, as the listing states it.

The WD201KFGX's stored recording technology is CMR (manufacturer-sourced), which rebuilds predictably in RAID. The row carries a 550TB/year workload rating.

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
20TB 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 20TB per drive, a 60-bay JBOD delivers 1200TB 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 10 hours for 20TB. 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 20TB 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.