Home Enterprise WD Red Pro 20TB Now Available

WD Red Pro 20TB Now Available

by Lyle Smith

Western Digital has announced that the WD Red Pro 20TB CMR HDD is now available, adding to their previously released 20TB Gold and Ultrastar DC HC560 HDDs. Optimized for NAS enclosures (up to 24 bays) and purpose-built for high-intensity workloads in 24/7 environments, the new WD Red Pro line features OptiNAND technology for more efficient data placement.

Western Digital has announced that the WD Red Pro 20TB CMR HDD is now available, adding to their previously released 20TB Gold and Ultrastar DC HC560 HDDs. Optimized for NAS enclosures (up to 24 bays) and purpose-built for high-intensity workloads in 24/7 environments, the new WD Red Pro line features OptiNAND technology for more efficient data placement.

This high-capacity drive helps both SMBs and large businesses archive, share, and protect their rapidly growing data, including high-res video, 3D models and animation, CT/MRI imaging, and other healthcare and scientific workloads. The WD Red Pro line is also available in a range of other smaller capacities, from 2TB all the way to today’s announced 20TB model.

wd red pro 20tb

Like others from the WD Red Pro line, the 20TB model leverages NASware 3.0 technology. This is the company’s proprietary advanced firmware technology that enables seamless integration, data protection, and optimized performance for NAS systems.

Also featured is WD’s OptiNAND technology, which combines the iNAND, controller, and firmware into an SoC on the Red Pro’s PCB. The iNAND is a 64-layer dynamic flash (BICS3) package that manages the metadata of the drive. We encourage you to read our OptiNAND platform article for more information on how it boosts drive capacity and performance, and why it’s ideal for hyperscalers regarding their cold data and archive tiers.

Performance-wise, the 7,200 RPM 20TB model is quoted with slightly lower transfer rates compared to the 18TB model at 268MB/s read (vs. 272MB/s read). Reliability remains the same as other higher capacities (20TB-10TB) of the Red Pro line, featuring an MTBF of 1 million hours, a workload rate (TB/year) of 200, and a 5-year limited warranty.

WD Red Pro 20TB Specifications

Model Number WD201KFGX
Formatted capacity 20TB
Recording technology CMR
Interface SATA 6 Gb/s
Form factor 3.5-inch
Native command queuing Yes
Advanced Format (AF) Yes
RoHS compliant5 Yes
Performance
Interface speed (max) 6 Gb/s
Internal transfer rate 268 MB/s
Cache (MB)1 512
RPM 7200
Reliability/Data Integrity
Load/unload cycles7 600,000
Non-recoverable errors per bits read <10 in 1014
MTBF (hours)8 1,000,000
Workload rate (TB/year) 300
Limited warranty (years) 5
Power Management
12VDC ±5% (A, peak) 1.80
5VDC ±5% (A, peak)
Average power requirements (W)
Read/Write 6.9
Idle 3.8
Standby and Sleep 1.6
Temperature (°C)
Operating 0 to 65
Non-operating -40 to 70
Shock (Gs)
Operating, (2 ms, read/write) 30
Operating, (2 ms, read)  50
Non-operating (2 ms) 250
Acoustics (dBA)
Idle 20
Seek (average) 32
Physical Dimensions
Height (in./mm, max) 1.028/26.1
Length (in./mm, max) 5.787/147
Width (in./mm, ± .01 in.) 4/101.6
Weight (lb/kg , ± 10%) 1.52/0.69

WD Red Pro 20TB Pricing and Availability

The WD Red Pro 20TB is available now for $499.99 on the company’s official website.

WD Red Pro 20TB

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