For up to 24 bay medium to large-scale NAS environments, the WD Red Pro drive is engineered to handle increased business workloads and carries a 5-year limited warranty.
Model Mumber WD4003FFBX Interface SATA 6Gb/s Formatted 4TB Form factor 3.5 inch Advanced Format Yes Native command queuing yes RoHS compliant Yes Performance Interface transfer rate (max) Buffer to host 6Gb/s Host to/from drive (sustained) 217MB/s Cache(MB) 256 Performance Class 7200RPM Class Reliability/Data Integrity Load/unload Cycles 600000 Non-recoverable read errors per bits read <10 in 1015 MTBF(hours) for 8-24 bay NAS 1000000 Workload Rate(TB/yr) 300 Power Management 12VDC-/+10%(A, peak) 1.79 Average power requirements(W) Read/Write 7.2 Idle 3.7 Standby/Sleep 0.4 Environmental Sepcifications Temperature(oc) Operating 5 to 60 Non-operating -40 to 70 Shock(Gs) Operating(2 ms,read/write) 30 Operating(2 ms,read) 65 Non-operating (2 ms) 300 Acoustics (dBA)9 Idle 29 Seek (average) 36 Item Dimension 6 x 4 x 2 Weight 1.58 LB Warranty Information 5 Years