Seagate Constellation ES.3 3TB ST3000NM0033 7200RPM SATA 3.5" HDD Hard DriveSeagate Constellation ES.3 3TB internal hard drive, Model ST3000NM0033. This enterprise-class 3.5-inch HDD uses a SATA 6Gb/s interface and spins at 7200 RPM. Seagate's specifications identify this exact model as a 3TB Constellation ES.3 SATA drive with 128MB cache. SeagateThe label shown in the photo confirms:- Model: ST3000NM0033- Capacity: 3TB- Product Line: Constellation ES.3- Part Number: 9ZM178-003- Firmware: SN03- Country of Origin: Thailand- 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.