This item, 481659-003, is the HPE assembly number for the product described as 300 GB ULTRA320 SCSI 15K RPM Universal Hot Plug Hard Drive. Further details below.HPE Option Part #: 411089-B22HPE Spare Part #: 411261-001HPE Model #: BF3008AFECHPE Assembly Part #: 481659-003* Please note that this model 481659-003 is aggregated under HPE option # 411089-B22 and HPE spare # 411261-001. HPE models that are acceptable substitutes include the following: BF30084971, BF3008B26C, BF3008AFEC, 412751-016, 443188-003. These are 100% identical to the product shown above.Specifications:Hard Drive Capacity: 300GBGeneration: Ultra320Data Transfer Rate: 320 MB/secRotational Speed: 15,000 rpmForm Factor (Drive): 3.5-inch low profileInterface: Wide Ultra 320 SCSI; LVDData Storage Device Type: SAS (Server Attached Storage) deviceHard Drive Device Type: Hard drive for server/storage unit (Hot-plug)Height: 1 inchPin Configuration: 80 pin Hot Swappable/ PluggableHotswap Tray: Included (Attached)Compatible with: