WESTERN DIGITAL SE NAS 4TB 3.5 INCH RPM 64MB CACHE IN SOUTH AFRICA

Interface SATA 6 Gb/s Performance Specifications Rotational Speed RPM (nominal) Buffer Size 64 MB Load/unload Cycles minimum Transfer Rates Buffer To Host (Serial ATA) 6 Gb/s (Max) Physical Specifications Capacity 4 TB Form Factor 3.5 Inch User Sectors Per Drive Performance Specifications Target Performance MTBF hours MTBF for 1-5 Bay NAS hours Physical Dimensions English Height Inches Depth Inches Width 4.00 Inches Weight 1.66 Pounds Metric Height 26.1 mm Depth 147 mm Width mm Weight 0.75 kg Power Management Read (Peak Watts) 9.50 Watts Write (Peak Watts) 9.10 Watts Environmental Specifications Shock Operating Shock (Read) 65G, 2 ms Non-operating Shock 300G, 2 ms Acoustics Idle Mode 31 dBA (average) Seek Mode 0 34 dBA (average) Temperature (English) Operating 41° F to 131° F Non-operating -40° F to 158° F Electrical Specifications Current Requirements Power Dissipation Read/Write 9.50 Watts Idle 8.10 Watts Compatibility Windows/Mac