This is Western Digital 320GB desktop hardrive with a part number of WD3200AVJS-63TBA0. These are 7200RPM drives with a SATA-300 interface that were originally slated for installation in various model HP computers and have an HP spare part number of 484054-003. These drives are new and have never been used. They were originally bulk packaged for OEM distribution and we have repackaged them for individual sale. They are being sold as pictured and do not include any additional parts, accessories or cables.