Nas drive memory capacity 4 tb form factor 35 inch rpms 5 900 rpm buffer 64 mb bus sata iii sata 600 series seagate ironwolf suitable for 24 hour continuous operation nas systems charge and discharge cycles 600 000 data transfer rate 180 mbs mtbf 1 000 000 hours technology halogen free manufacturers guarantee 36 months noise level operating 25 db noise level idle 23 db power consumption operating 48 watt power consumption idle 395 w