Nas drive server hard drive memory capacity 2 tb form factor 35 inch rpms 7 200 rpm buffer 128 mb bus sata iii sata 600 series seagate enterprise capacity suitable for 24 hour continuous operation nas systems video surveillance systems data transfer rate 194 mbs access time 416 ms mtbf 2 000 000 hours technologies powerchoice raid rebuild sector size 512b sectors manufacturers guarantee 60 months power consumption operating 7 watt power con