Desktop hard drive capacity 500 gb form factor 35 inch rpms 5 400 rpm buffer 64 mb bus sata iii sata 600 intellipower 5400 7200 rpm range series western digital av series special feature ncq support mtbf 1 000 000 hours technology intellipower sector size 4 kb sectors manufacturers guarantee 36 months noise level operating 24 db noise level idle 23 db power consumption operating 525 watt power consumption idle 33 watt height 261