Side 1: SFF-8654 SlimSAS 8i 74Pin; Side 2: 8x SATA 7Pin SAS3.0 100-ohm Silver plated AWG31 Twinax for impeccable signal integrity Plug and play, hot-swap support, universal for large and small hard disks This product is widely used in cloud computing, servers, high-speed networks, disk arrays, switches, large-capacity storage systems, hard disk control cards and other large-capacity data devices to connect and transmit information at high speed 10Gtek SlimSAS 8i to 8xSATA Cable, SFF-8654 Host/RAID to SATA Target, Suitable for Servers, Hard Drives, Computers, and Hosts, 1m(3.3ft)