We chose the WD Red Pro drives because they offer anideal combination in terms of performance, capacity, cost and reliability. ... We have been very impressed with the WD Red Pro drives’ performance on all of those counts.​

— Jérôme Sintes, IT Manager at Ecole Emile Cohl

Enterprise-class storage ideal to power AI NAS at every scale.

Powering Smarter Content Management​

WD Red Pro HDDs deliver the capacity and durability AI-driven NAS solutions depend on, supporting advanced data management and content aggregation. As AI NAS stores more structured and unstructured data, WD Red Pro scales to keep pace — boosting productivity and storage efficiency.

Durability for Heavy Workloads

With a workload rating of up to 550TB/yr³, WD Red Pro hard drives are designed to handle the rigorous demands of high-intensity, 24×7 multi-user NAS environments. Continuous operation is exactly what these drives are built for — so your AI NAS runs hard without slowing down.

Enterprise-Class Capacity and Reliability

WD Red Pro drives are offered across a wide range of capacity points — from 2TB to 26TB¹— to scale with the needs of your organization. Rated at up to 2.5 million hours mean time before failure (MTBF)², they deliver the enterprise-class reliability that always-on AI NAS environments depend on.

Optimized for RAID

WD Red Pro drives feature Time-Limited Error Recovery (TLER), helping ensure uninterrupted operation in RAID-powered NAS and AI NAS systems. Proven in tower and rack-mount systems with any number of bays, WD Red Pro is the right drive for AI NAS at every scale — backed by a 5-year limited warranty⁴.

Capacity

20TB

Technologies

NASware, OptiNAND, ArmorCache

Model Number

WD202KFGX

Recording Technology

CMR

Interface

SATA

Connector

SATA

Form Factor

3.5-Inch

Transfer Rate

up to 285MB/s

Disk Speed (RPM)

7200 RPM

Cache Size

512MB

Endurance (TBW)

550TB/year

Warranty

5-Year Limited Warranty

Operating Temperature

0°C to 65°C

Non-Operating Temperature

-40°C to 70°C

Dimensions (L x W x H)

147mm x 101.6mm x 26.1mm

Weight

1.52lbs

Certifications

BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV, UL

Use Cases

Network Attached Storage (NAS)

Compatibility

RAID-optimized NAS systems with unlimited # of bays

Additional Models
4TB, 256MB WD4005FFBX

6TB, 256MB WD6005FFBX

8TB, 256MB WD8005FFBX

10TB, 512MB WD103KFBX

12TB, 512MB WD122KFBX

14TB, 512MB WD142KFGX

16TB, 512MB WD161KFGX

18TB, 512MB WD181KFGX

20TB, 512MB WD202KFGX

22TB, 512MB WD221KFGX

24TB, 512MB WD241KFGX

26TB, 512MB WD260KFGX

Disclosures

1. 1MB = 1 million bytes, 1GB = 1 billion bytes, 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.​
2. Projected Values. When final, MTBF are based on a sample population and are estimated by statistical measurements and acceleration algorithms under typical operating conditions, workload of 220TB/year and drive temperature of 40°C. Derating of MTBF will occur above these parameters, up to 550TB writes per year. MTBF do not predict an individual drive’s reliability and do not constitute a warranty.​
3. Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred × (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations.​
4. See https://www.westerndigital.com/support/store/warranty-policy for region-specific warranty details.