USB 3.0 port x 2 switch to USB 3.0 20 pin cable x 1 With this cable, you can directly board 20pin socket, converted to 2 usb3.0 socket! Very easy to use USB3.0 data cable connected to the chassis front panel of USB3.0! there is 2 screw holes at USB 3.0 Female end You can use USB 3.0 type-A female convert USB3.0 (20pin Header) directly connected to the motherboard Stackable USB 3.0 Female Panel Type to Motherboard 20Pin Header Cable Dual Ports 50cm