Hard Disk Model: SEAGATE ST3320413ASDisk Family: Barracuda 7200.12Form Factor: 3.5"Capacity: 320 GB (320 x 1 000 000 000 bytes)Rotational Speed: 7200 RPMRotation Time: 8.33 msAverage Rotational Latency: 4.17 msDisk Interface: Serial-ATA/600Buffer-Host Max. Rate: 600 MB/secondsBuffer Size: 16384 KB