Seagate ST3250620AS Barracuda 7200.10 - Hard drive - 250 GB - internal - 3.5" - ATA-100 - 7200 rpm - buffer: 16 MB Storage Capacity: 250 GB Platform Supported: PC Maximum External Data Transfer Rate: 100 MBps (800 Mbps) Rotational Speed: 7200 rpm Buffer: 16 MB