Nas drive memory capacity 2 tb form factor 25 inch rpms 7 200 rpm buffer 128 mb bus sata iii sata 600 series seagate enterprise capacity data transfer rate 136 mbs mtbf 2 000 000 hours sector size 512b sectors manufacturers guarantee 60 months noise level operating 32 db noise level idle 28 db power consumption operating 522 watt power consumption idle 387 watt height 15 mm