Nas drive memory capacity 4 tb form factor 35 inch buffer 64 mb bus sata iii sata 600 series seagate nas hdd charge and discharge cycles 600 000 mtbf 1 000 000 hours manufacturers guarantee 36 months noise level operating 25 db noise level idle 23 db power consumption operating 48 watt shock resistance operating 80 g shock resistance non operating 300 g height 261 mm dimension 147 x 101 6 mm weight 630 g