Western Digital Red Pro 20TB HDD

The OptiNAND-enabled WD Red Pro NAS line of high-capacity hard drives (HDDs) offers a compelling way to hit up to 22TB without having to use SMR technology. Performance is as expected, but you still have to pay more for this much storage in a single drive.

-- As reviewed by Tom's Hardware
Western Digital Red Pro 20TB HDD 1

Product details

  • Available in capacities ranging from 2 to 22TB(1) with support for NAS systems with up to 24 bays | (1) 1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.
  • Supports up to 300TB/yr workload rate(2) | (2) 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.
  • Enhanced reliability with 3D Active Balance Plus technology and error recovery controls with NASware 3.0 technology
  • Extended drive testing to ensure each drive is tested for extended reliable operation
  • 5-year limited warranty(3) | (3) See official Western Digital website for regional specific warranty details.

PROS

+ High-capacity CMR storage
+ Meets all performance criteria with relatively good 4KB latency
+ 512MB DRAM cache

CONS

- Premium price per TB
- Warranty is inferior to the competition

Expert reviews and ratings

By Tom's Hardware on June 08, 2023
The OptiNAND-enabled WD Red Pro NAS line of high-capacity hard drives (HDDs) offers a compelling way to hit up to 22TB without having to use SMR technology. Performance is as expected, but you still have to pay more for this much storage in a single drive.
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