This 3/4 meter long cable uses 30 AWG wires and is intended for internal use. It has a single 36-pin SFF-8087 male Mini-SAS plug (with locking latch) on one end and has four 7-pin SATA female plugs (with locking latches) on the other, allowing you to connect four SATA drives to an SAS controller. This is a Forward Breakout cable, meaning that it is intended to connect to a host/controller on the SAS end and to drives on the SATA end.