Hard Drive 24X7 Operation NO Average Read Seek Time 2 ms Capacity 1 TB Manufacturer Western Digital Dimensions (W x H x D) 101.6 x 25.4 x 147 mm / 4 x 1 x 5.787 in. Warranty 3 years MTBF (hours)/Load/Upload Cycles 30000 Spindle Speed 7200 RPM Size 3.5" Operating Temperature 0 ~ 60°C (32 ~ 140°F) Interface SATA III Cache Size 64 MB