USB connector extension cable, 9-pin motherboard PCB cable, 9-pin male-to-female connector extender extension DuPont jumper cable. The USB extension cable is a 9-pin 2.54 mm pitch male-to-motherboard extension cable. Jacket material: PVC Color: Black Length: 20.3 inches/515mm Jumpers can reduce the stress on the rear USB expansion board or the front panel USB port and the connection between the expansion card and the motherboard port and eliminate stress. Note: The color of the wire is different due to different batches, but the wiring contact and the card position are in the same position, which will not affect the function of the product.