ITEM NAME:USB 3.0 Back Panel Expansion Bracket to 20-Pin Header Cable (2-Port) D4X5 USB 3.0 Back Panel Expansion Bracket to 20-Pin Header Cable (2-Port) D4X5 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. 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 45cm/1.5ft Color: Black Package Content:1 x USB 3.0 Back Panel Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.