Toshiba MK8037GSX 80GB 5.4K 2.5" SATA Hard Drive Toshiba America Information Systems, Inc. (TAIS), Storage Device Division presents the 2.5 inch and 80 GB MK8037GSX hard drive. The MK8037GSX unit offers the highest range density for industry plate, with 146,9 gigabit per square inch. The engine speed of 5400 RPM improves system performance by 12% compared to 4200 RPM. This new unit offers sufficient capacity for recording and editing portable video, with lower energy consumption than traditional 3.5-inch disk drives. This feature offers an ideal storage space for a range of commercial and consumer notebooks as well as for non-PC applications such as PDA, printers, copiers, GPS systems and MP3 players. The MK8037GSX incorporates the Serial ATA (SATA) II interface and is compatible with ATA-7, supporting high transfer speeds of up to 300 megabytes per second. Alternative PN: WR643 0WR643 Compatibility: This unit is compatible with any laptop/computer that uses 2.5" SATA hard drives. Technical specifications MK8037GSX Rotating speed 5,400 rpm Default buffer size (cache) 8 Mbyte Number of disks (physical) 2 Number of heads (physical) 4 Performance External transfer rate (I/O) (max) 150 Mb/sec Average search time 12 msec