Toshiba 160 GB 5400rpm SATA2 8MB Notebook Hard Drive (2.5 inch) (MK1655GSX) Toshiba MK1655GSX 160 GB SATA 2.5-inch Hard Drive General Features: 160 GB storage capacity Serial ATA interface Transfer rate up to 3 Gb/s 5400 RPM spindle speed 8 MB buffer Read-ahead cache Write cache 12 ms average seek time 22 ms maximum seek time 2 ms track-to-track seek time S.M.A.R.T. command support "Ramp-Load" Technology PMR (Write) / TMR (Read) Head/Actuator technology