Description: Add USB ports without having to take up any PCI slots. Cable Length: 50cm / 1.5Feet, Long enough for most PC Case. Comes with bracket, Easy to install, no Additional Drivers are Necessary. Connectors: USB 3.0 Female (x2), 20 pin USB 3.0 Motherboard Connector Header. Higi Speed: Copper core, excellent electric conductivity, the speed rate of data signalling is Up to 5Gbps. Specification: Material: PVC Cable length:50cm/1.64feet Color: Black Package Includes: 1 Piece Dual USB 3.0 Back Panel