Western Digital 4TB WD Red Pro NAS Internal Hard Drive HDD – 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5″ – WD4003FFBX

Designed specifically with medium or large scale business customers in mind, WD Red Pro drives are available for up to 24-bay NAS systems. Engineered to handle high-intensity workloads in 24×7 environments, WD Red Pro is ideal for archiving and sharing, as well as RAID array rebuilding on extended operating systems such as ZFS or other file systems. These drives add value to your business by enabling your employees to quickly share their files and back-up folders reliably in your NAS solution.

Make sure this fits by entering your model number.
7200RPM performance class
Available in capacities ranging from 2-14TB 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. Workload Rate is annualized (TB transferred ✕ (8760 / recorded power-on hours))
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