HP 250GB 3G SATA 7.2K rpm LFF (3.5-inch) Non-hot Plug Midline 1y Wty Hard Drive. Hard drive interface: Serial ATA, Hard drive capacity: 250 GB, Hard drive size: 8.89 cm (3.5"). Width: 10.16 cm, Height: 2.61 cm, Depth: 14.7 cm. Acoustic pressure emissions: 32 dB