Desktop hard drive memory capacity 4 tb form factor 35 inch rpms 7 200 rpm buffer 128 mb bus sas 30 data transfer rate 226 mbs mtbf 2 000 000 hours technologies halogen free powerchoice sector size 512e sectors manufacturers guarantee 60 months power consumption operating 9 watt power consumption idle 6 watt height 261 mm dimension 147 x 102 mm weight 655 g