Nas drive memory capacity 1 tb form factor 35 inch rpms 7 200 rpm buffer 128 mb bus sata iii sata 600 series western digital raid edition re special feature ncq support suitable for 24 hour continuous operation nas systems video surveillance systems charge and discharge cycles 600 000 data transfer rate 184 mbs mtbf 2 000 000 hours manufacturers guarantee 60 months noise level operating 28 db noise level idle 25 db power consumption operati