250GB 7200RPM 32MB Cache SATA 3Gb/s NCQPrimary InformationHeight : 147 Mm Width : 26.1 Mm Depth : 101.6 Mm FormFactor : 3.5 Hard Drive Type : Internal Hard Drive Capacity : 250 GB Hard Drive Spindle Speed : 7200 Rpm Hard Drive Interface Type : Serial ATA HardDrive / Average Seek Time : 8.5 Ms Hard DriveBuffer Size : 32 MB Storage Controller Type : Serial ATA-300 Hard Drive / Data Transfer Rate : 300 MBps Service&SupportService& Support Type : 5-year warranty Special FeatureReplacement Part# : ST3250310NS UNSPSC CodeUNSPSCCode : 43201803