WD Red Plus 4TB SATA 6Gb/s 3.5inch 258MB cache internal HDD Bulk

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.

Device Type: Hard drive - internal Capacity: 4 TB Form Factor: 3.5" Interface: SATA 6Gb/s Buffer Size: 256 MB Features: NASware technology, 24x7 continuous operation, Conventional magnetic recording (CMR) Width: 101.6 mm Depth: 147 mm Height: 26.1 mm Weight: 570 g Drive Transfer Rate: 600 MBps (external) Internal Data Rate: 180 MBps Spindle Speed: 5400 rpm MTBF: 1,000,000 hours 24x7 Operation: Yes Non-Recoverable Errors: 1 per 10^14 Load / Unload Cycles: 600,000 Interfaces: 1 x SATA 6 Gb/s Compatible Bay: 3.5" Power Consumption: 4.7 Watt (read) 4.7 Watt (write) 3.1 Watt (idle) 0.3 Watt (sleep) Service & Support: Limited warranty - 3 years Min Operating Temperature: 0 C Max Operating Temperature: 65 C Min Storage Temperature: -40 C Max Storage Temperature: 70 C Sound Emission: 23 dBA