Nas drive memory capacity 8 tb form factor 35 inch rpms 7 200 rpm buffer 128 mb bus sata iii sata 600 series western digital red special feature ncq support suitable for nas systems 24 hour continuous operation charge and discharge cycles 600 000 data transfer rate 205 mbs mtbf 1 000 000 hours sector size 4 kb sectors manufacturers guarantee 60 months noise level operating 36 db noise level idle 20 db power consumption operating 72 wat