Toshiba MK2556GSYF 250GB 2.5" 7200RPM 16MB Cache SATA 3.0GB/s Internal HDD Hard Disk Drive HDD2E73.Toshiba Model Number: MK2556GSYFToshiba Part Number: HDD2E73Dell Part Number: RD2DT 0RD2DT PH-0RD2DTSpecifications:ModelManufacturer ToshibaManufacturer Model # MK2556GSYFPerformanceProduct Type Internal Hard DriveForm Factor 2.5-inchCapacity 250 GBCache 16 MBSpindle Speed 7200 RPMAverage Seek Time 8.5 msDrive Interface Type SATA 3.0 Gbps