Seagate Constellation ES 2TB ST32000644NS SATA 7200RPM 64MB 3.5" HDD UnitSeagate Constellation ES 2TB internal hard drive, Model ST32000644NS. The photos confirm the 2TB capacity, SATA interface, 7200 RPM speed, and 64MB cache. Seagate's product manual lists the ST32000644NS as a 2TB, 7200 RPM 3.5-inch SATA enterprise drive with a 64MB cache buffer.- No other accessories included We have 30 day returns money back guarantee . We do our best to describe everything accurately. This item is sold as shown are pulled from working environments and may include components that are untested, incomplete, or non-functional. While we do our best to describe each item accurately, we cannot guarantee the performance or compatibility of every part. See photos for more details. By purchasing, you acknowledge and accept this item is being sold as-is with no guarantees beyond what is stated.