Western Digital 500GB EIDE Internal Hard Drive, 7200 RPM, 8 MB cache, Retail Box (WD5000JBRTL) Product Description WD Caviar SE WD5000JB - hard drive - 500 GB - ATA-100 Type Hard drive - internal Dimensions (WxDxH) 4 in x 5.8 in x 1 in Weight 1.3 lbs Capacity 500 GB Interface Type ATA-100 Data Transfer Rate 100 MBps Average Seek Time 8.9 ms Spindle Speed 7200 rpm Buffer Size 8 MB Manufacturer Warranty 1 year warranty Device Type Hard drive - internal Width 4 in Depth 5.8 in