Suitable for USB3 cable connections in cases with built-in USB3 ports and motherboards that only have USB2 internal connections. The internal USB adapter cable 3.0 to internal 2.0 allows a computer case with USB 3.0 connection slots to be connected to motherboards that only have USB 2.0 slots. The cable converts the 19-pin USB 3.0 connector of the case into an 8-pin USB 2.0 plug that fits onto a motherboard header with up to 2 x USB 2.0. The adapter cable has a length of 150 mm. This cable allows for the transfer rates of the USB 2.0 standard to be achieved.