Connector 1 Male USB 3.0 Connector 19/20-Pin Connector 2 Female lower profile USB 3.0 Connector Motherboard USB 3.0 19/20-Pin Internal Extension Cable Compatibility Low profile USB 3.0 extender cable for motherboards. Extension cable for SLI configurations that need access to USB 3.0 headers,Super Speed-Data transfer speed is up to 5Gbps. Flat Ribbon Wire Using the top quality flat ribbon wires for stable signal and data transmission, which are more durable comparing to individual crimped wires;