ST3320620AS 320 GB 7200 rpm N/A ms avg SATA 3Gb/s   The Barracuda 7200.10 is the largest, most reliable disc drive around. New perpendicular recording technology supports vertically stored data bits, enabling increased areal density and dependability for workstations and performance PCs. Additionally, the Barracuda 7200.10 is available in SATA 3Gb/s, SATA 1.5Gb/s and ATA/100 interfaces. Features Benefits Perpendicular Recording   Perpendicular Recording increases data density while decreasing moving parts for a more dependable drive.   Serial ATA 3Gb/s (300MB/s)   This product is configurable from SATA 1.5Gb/s to SATA 3Gb/s for easy interoperability.   Adaptive Fly Height   Adaptive Fly Height offers consistent read/write performance from the beginning to end of your computing workloads.   Clean Sweep   Clean Sweep automatically calibrates your drive each time you power up.   Directed Offline Scan   Directed Offline Scan runs diagnostics when storage access is not required.   Seagate SoftSonic   Seagate SoftSonic motor enables whisper-quiet operation.   Enhanced G-Force Protection   Enhanced G-Force Protection defends against handling damage.   5 Year Warranty   This product carries an unprecedented five-year warranty.