Laptop hard drive capacity 500 gb form factor 25 inch rpms 5 400 rpm buffer 16 mb bus sata ii sata 300 series seagate momentus special feature ncq support mtbf 600 000 hours sector size 4 kb sectors manufacturers guarantee 24 months noise level operating 22 db noise level idle 20 db power consumption operating 12 watt power consumption idle 045 watt height 7 mm