Western Digital WD3200AAKX 320GB 16MB 7200RPM 3.5" SATA Desktop Drive Increase the storage capacity of your Desktop with the 320GB, 7200RPM SATA hard drive from Western Digital. Featuring SATA interface, this drive offers a high rotational speed, this drive provides fast disk access. Specifications Manufacturer: Western Digital Model Number: WD3200AAKX Product Type: Desktop Hard Drive Capacity: 320GB 16MB Cache Rotational Speed: 7200RPM Form Factor: 3.5 Inch Interface: SATA Warranty: 1-Year Shipping: Free (2-3 days USA)