Connects Mini SAS HD SFF8643 host port to SFF8639 U. 2/SAS drive interface for enterprise highspeed storage expansion; Supports stable 12Gbps SAS 3.0 highbandwidth data transmission, compatible with U. 2 NVMe SSDs and SAS hard drives; Integrated SATA 15pin Ytype power cable provides reliable power supply, simplifying server internal wiring; Optimized wire harness minimizes signal loss and crosstalk for consistent longterm operation in data center environments; 19.68 inch compact length enables neat shortdistance routing inside 2U/4U rackmount servers and storage backplanes