Features: 1.Mini SAS: SFF?8654 to SFF8643 server line, supporting 12 Gbps data. 1xSFF8654 to 2xSFF8643 line. 2.Applicability: The SFF?8643 interface is mainly used to connect the backplane storage driver adapter cable on the MINI SAS HD 4i array card to support 12Gbpsx2Lane2 channels of data transmission, and the transmission rate is up to 12Gbps. 3.The Interface Is Consistent: The buckle is not easy to loosen, and the transmission is more stable. 4.Note: Please confirm the position of the interface when using, and the chip in the direction of the thread should touch the chip to avoid the wrong direction of plugging and unplugging. 5.Connection: Connect the backplane storage driver to the mini SAS HD internal interface of the motherboard through the SFF8654 to 8643 data cable. specification:Item Type: Mini SAS Cable Product Material: Silver Plated Oxygen Free Copper Model: SFF8654 8i-2 8643 Transmission Rate: 12 Gbps Interface Type: SATA/ATA Shield: Aluminum Foil Shield Strong Toughness, Convenient Wiring Plug: 1 x SFF8654 to 2 x SFF8643 Host Side: Slim SAS 4.0 SFF-8654 8i 74PIN Target End: Slim SAS 4.0 SFF-8643 Dual Hd 36PIN Ultraport SlimSAS: Complies with the T10/serial Attached SCSI (SAS-4) Standard and is Applicable to All Known Protocols. the Ultraport SlimSAS Connector Takes Up the Same Space As Mini SAS. Typical Applications Include: Servers, Switches, Routers, Storage Racks, Etc. Cable s: Host/Controller Connection: 1 x 74 Pin HD Mini SAS SFF-8654-8i Male with Door Lock SATA Drive Connection: 2 x HD Mini SAS SFF-8643 Socket Female with Door Lock Wire: 32AWG Silver Plated Copper Impedance: 85Ω Support: SAS4.0 Length: Approx.0.8m / 0.87yd Compliance: RoHS PackageList: 1 x Cable 3 x Protective Cover