Converts single MCIO 8i 74pin Slimline SAS host port to dual SFF8639 U. 2/SAS drive interfaces for enterprise highspeed storage expansion; Supports ultrafast 24Gbps SAS 4.0 highbandwidth transmission, compatible with U. 2 NVMe SSDs and enterprisegrade SAS drives; Integrated 15pin power cable supplies stable dedicated power, simplifying internal server wiring layout and installation; 19.68 inch compact length optimizes shortdistance routing in dense 2U/4U rackmount server chassis; Servergrade shielded wire harness minimizes signal loss and crosstalk for reliable data center and RAID system operation