Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD – 5400 RPM, SATA 6 Gb/s, CMR, 128 MB Cache, 3.5″ -WD40EFZX

Packed with power to handle the small- to medium-sized business NAS environments and increased workloads for SOHO customers, WD Red Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files.

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Available in capacities ranging from 1-14TB with support for up to 8 bays
Supports up to 180 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)). Workload Rate will vary depending on your hardware and software components and configurations.
NASware firmware for compatibility
Small or medium business NAS systems in a 24×7 environment