Western Digital WD Red Pro NAS
WD Red Pro 18TB (WD181KFGX): 3.5" 7200 RPM CMR SATA NAS HDD, launched Sep 25, 2020; helium-filled and ideal for multi-bay NAS bulk storage and media libraries.
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Product overview
Western Digital’s WD Red Pro 18TB (WD181KFGX) was announced on September 25, 2020 as part of a WD Red Pro capacity refresh within the long-running Red Pro NAS HDD family. It uses a 3.5-inch, SATA 6 Gb/s, 7200 RPM CMR design and remains an active, current model. Positioned in the workstation tier, it exists to deliver reliable, high-capacity bulk storage for 24/7 multi-bay NAS and RAID. It’s well suited to mass storage and large game libraries on a NAS, with sequential transfers up to about 272 MB/s for fast media serving and big file moves. Notable: the 18TB model is helium‑filled. Not discontinued as of July 2026.
- mass storage
- game library
Product highlights
- Available in capacities ranging from 2-18TB with support for up to 24 bays
- Supports up to 300 TB/yr workload rate| Workload Rate is defined as the amount of user data transferred to or from the hard drive
- 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
Specifications
- Capacity
- 18 TB
- Type
- HDD
- Form factor
- 3.5
- Hardware Interface
- SATA
- Data Transfer Rate
- 600 MB
- Read speed
- 272 MB/s
- Tdp
- 6 W
