Seagate Momentus 5400.3 120GB SATA/150 5400RPM 8MB 2.5" Hard Drive Seagate Momentus 5400.3 120 GB 2.5-inch Notebook Hard Drive General Features: 120 GB capacity Serial ATA interface 5400 RPM spindle speed 8 MB buffer 1 ms track to track read seek time 1.5 ms track to track write seek time 11 ms random read seek time 13 ms average write seek time 22 ms full stroke seek time 24 ms full stroke seek time 5.6 ms average latency Quiet operation. Fluid Dynamic Bearing (FDB) motor