This is an SEAGATE / IBM 73GB SAS Drive. The SEAGATE part number is ST973401SS. The IBM part number is 26K5262, IBM FRU 26K5657 . This is the drive only na ddoes not include the sled for installation in various IBM servers. These drives were pulled from working systems and tested to verify functionality. It is being sold as pictured and does not include any additional parts or accessories.