This is a self-made keyboard, the cocot46plus. It's made with USB-C. There are no issues, and the LED lights have been confirmed to work. A matte black case is also included. The photos show keycaps and switches as an example, but the sale does not include keycaps or switches. Only the keyboard body, case, trackball, and rotary encoder cap are included. A black trackball can also be included. I have confirmed that there are currently no issues, but as this is a self-made keyboard, it's best for those who can troubleshoot any problems themselves. Connection type... Wired #trackball #selfmadekeyboard #cocot46plus