Seagate Momentus Thin ST320LT007 320GB 2.5" 7200 RPM 16MB Cache SATA2 3GB/s Internal HDD Hard Disk Drive 9ZV142-071 42T1365.Model Name: Momentus ThinSeagate Model Number: ST320LT007Seagate Part Number: 9ZV142-071Lenovo Part Number: 42T1365 11S42T1365FRU Part Number: 42T1204L/C Part number: 16005030Specifications:Form Factor: 2.5"Series: Laptop HDDInterface: SATA II, Serial ATA-300 (3.0 GB/s)Cache: 16MBCapacity: 320GBRPM: 7200 RPMHeight: 7.0mm