Laptop hard drive memory capacity 2 tb form factor 25 inch rpms 5 400 rpm buffer 128 mb bus sata iii sata 600 series seagate mobile hdd charge and discharge cycles 600 000 data transfer rate 100 mbs technology smr shingled magnetic recording sector size 4 kb sectors manufacturers guarantee 24 months noise level operating 24 db noise level idle 22 db power consumption operating 17 watt power consumption idle 05 watt shock resistance