USB 3.0 Back Panel Expansion Bracket to 20-Pin Header Cable (2-Port) Motherboard£» Description£º This cable (plus bracket) provides 2 external USB 3.0 ports that connect to the motherboard. This lets you add USB ports without having to take up any PCI slots. Features£º USB 3.0 Back Panel Expansion Bracket to 20-Pin Header Cable (2-Port) Connectors:USB 3.0 Female (x2), 20 pin motherboard Comes with bracket Doesn't take up PCI slot Length: about 50cm Color: Black Package Content: 1 x USB 3.0 Back Panel Cable No Retail Packing