HGST Travelstar 2.5-Inch 250GB 7200 RPM SATA II 8 MB Cache Internal Hard Drive (0S00152) Internal 2.5 hard drive for your laptop Large 250GB storage capacity The Travelstar's lower power design means you get more unplugged computing time to keep you working at peak performance no matter where you are - in the office or on the road Delivers the perfect balance of capacity, ruggedness and low power consumption Patent-pending technologies add reliability in non-stop computing environments