This is for a multiplier, one connect to motherboard 9pin (10pin) port, split to 4x 9-Pin(10-pin).
Port Multiplier version: 1 to 4
Connector A: 9 Pin USB 2.0 Male
Connector (s) B: 4X 9 Pin USB 2.0 Female Double chipset included, works well and stable. USB cable length is about 30cm. With back glue, can be directly fixed on the main board or chassis firmly.