This HPE BF450DASTK Hard Drive has a 1-inch (3.5 inch) form factor and a 2/4 Gbps external data transfer rate. It has a spindle speed of up to 15000 RPM and a 450 GB capacity. This Large Form Factor hard drive uses a 2/4 Gbps Fibre Channel interface.Brand: HPEMPN: BF450DASTKOption Part Number: AG804AOption Part Number: AG804BSpare Part Number: 454415-001Model Number: BF450DASTKAssembly Number: 531294-002GeneralDevice Type: Hard Drive - Hot-SwapCapacity: 450 GBForm Factor: 1-inch (3.5 inch LFF)Interface: Fibre Channel 2/4Gbps (FC-AL)Drive Technology (Fill): AirFeatures: Dual PortPerformanceSpindle Speed: 15000 RPMData Transfer Rate: 2/4 GbpsExpansion & ConnectivityInterfaces: 1 x Fibre Channel 2/4Gbps (FC-AL)Compatible Bays: 1 x 3.5" LFFDesigned for:HPE StorageWorks Enterprise Virtual Array 4100 Model 2C1D, 4100 SAN Starter Kit, 4100 Starter Kit, 4100 Starter Kit for HPE BladeSystems, 4100 Starter Kit for HPE BladeSystems Field Installed, 4100-A Starter Kit, 6100 Model 2C4D, 8100 Model 2C12D, 8100 Model 2C2D, 8100 Model 2C6D...but will work with any standard 4gbit/s+ FC host and will hot swap into any array or enclosure designed for 3.5" FC drives, however caddies may need replacing for non-HPE enclosures.