1) This cable can be used to connect internal devices, e. g. a backplane with Slimline 8654 74pin connector to a controller with SFF-8654 4I 38pin connector. also work for 74pin host to dual 38pin target. Ultraport Slimline 8i 74Pos Cable Assembly, Applications for Servers, Data Storage, Workstation; Meet PCIe Gen3 and SAS 4.0 specification.