Insist on a high-performance hard disk drive that complements your ThinkPad notebook performance. The ThinkPad 100GB Serial ATA Hard Drive (7200rpm) uses Serial ATA, a high-throughput storage interface for the latest computing platforms. You can either increase your hard drive capacity by using this drive as a larger primary system hard drive, or use it as a secondary serial hard drive with the optional ThinkPad Serial ATA Hard Drive Bay Adapter for select ThinkPad systems and docking solutions.<br><br>• The ThinkPad 100GB 7200rpm Serial ATA Hard Drive lets you easily upgrade the primary hard drive of ThinkPad T60, X60 and Z60 notebooks<br>• Use the optional ThinkPad Serial ATA Hard Drive Bay Adapter (40Y8725) to install this hard drive in the:<br>- Advanced Ultrabay media bay in ThinkPad T60 and Z60 notebooks<br>- ThinkPad Advanced Dock<br>- ThinkPad X6 UltraBase<br>• Testing ensures reliability and compatibility with ThinkPad systems<br>• Backed by a Limited Warranty from Lenovo with