Performance Product Type Internal Hard Drive Form Factor 3.5-inch Capacity 250 GB Cache 8 MB Spindle Speed 7200 RPM Average Seek Time 11 ms Drive Interface Type SATA 1.5 Gbps Other Information Features Quiet Operation On-The-Fly Error-Correction Native Command Queuing (NCQ) Enhanced Partial Response Maximum Likelihood (EPRML) Tunneling Giant Magnetoresistive (TGMR) Recording Heads