The ThinkPad 160GB 2.5" Intel X25-M Solid State Drive II (0A33983) is an ideal data storage solution that offers improved performance and reliability. It uses speedy non-volatile memory and no moving parts, instead of the standard hard drive's spinning platters and moving heads. This drive is supported on selected ThinkPad systems as the primary drive, also when used with the ThinkPad Serial Hard Drive Bay Adapter III (43N3412) is supported for usage of this drive as a second hard drive.