The ThinkPad 128GB SATA 6.0Gb/s 7mm Solid State Drive provides a rugged, light and reliable performance using MLC NAND flash based technology which helps to improve boot time and data transfers when compared to Hard Disk Drives (HDD) alternatives. In addition this drive provides SATA interface for speedy data transfers. For additional storage and backup install this drive as a second hard drive using the 9.5mm ThinkPad Serial Hard Drive Bay Adapter III (43N3412) or 12.7" ThinkPad Serial Hard Drive Bay Adapter III (0A65623).