Desktop hard drive memory capacity 4 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 data transfer rate 226 mbs mtbf 2 000 000 hours technologies halogen free powerchoice sector size 512b sectors manufacturers guarantee 60 months power consumption operating 69 watt power consumption idle 545 watt shock resistance operating