Toshiba MK2546GSX 250GB 2.5" 5400 RPM 8MB Cache SATA 1.5GB/s Internal HDD Hard Disk Drive HDD2D90 462540-001.Model Number: MK2546GSXToshiba Part Number: HDD2D90HP Part Number: 462540-001 453827-001Specifications:Form Factor: 2.5"Series: Laptop HDDInterface: SATA, Serial ATA-150 (1.5 GB/s)Cache: 8MBCapacity: 250GBRPM: 5400 RPMHeight: 9.5mm