This cable can be used to connect internal devices, e.g. a backplane with Slim Line 8654 74pin connector to a controller with oculink SFF-8611 connector. 2.Provide four channels signal transmission as per industry standard 3.Data speed: 24Gbps for SAS and 8GT/s for PCIe per channel 4.Meet SAS4.0, Ultraport SlimSAS SFF-8654 specification