Add extra 3.0 USB ports to any PC with this dual USB to motherboard adapter. This 20 Pin design feeds directly to your motherboard to save you from taking up those valuable PCI-E or PCI slots. Transfer your data in 3.0 Superspeed Features Add USB ports directly to your motherboard Dual 3.0 USB out to 20 Pin Connection Easy fast way to add USB ports without taking up a PCI slot Size: 2 / 5.1cm; Color: Black Small size leaves room for other connections.