Seagate ST3500630AS 500GB SATA/300 7200RPM 16MB Hard Drive Seagate ST3500630AS 500 GB SATA/300 Hard Drive General Features: 500 GB formatted capacity 7200 RPM spindle speed SATA/300 interface (SATA II) 16 MB buffer 8.5 ms average seek time 4.16 ms average latency 3.5-inch form factor Power Specifications: +5V, 0.72A +12V, 0.52A Regulatory Approvals: cULus CE C-Tick BSMI MIC