Server hard drive memory capacity 8 tb form factor 35 inch rpms 5 900 rpm buffer 128 mb bus sata iii sata 600 series seagate archive special feature ncq support charge and discharge cycles 300 000 data transfer rate 150 mbs mtbf 800 000 hours technologies powerchoice smr shingled magnetic recording halogen free acutrac sector size 4 kb sectors manufacturers guarantee 36 months power consumption startup 2 watt power consumption operating