Upgrade your laptop's storage with this Seagate Momentus XT internal hard disk drive. With a storage capacity of 500GB and a rotation speed of 7200 RPM, this HDD is compatible with most laptops and features a SATA II interface. The drive type supported is HDD only and it has a transfer rate of 300 Mbps. This unit has a hot swap feature and a cache size of 32 MB. It also comes with a 1-year manufacturer warranty. The Seagate Momentus XT is a reliable choice for anyone in need of additional storage on their laptop.