This wallmount is for standard Dreamcast controllers. See my design list for wallmounts for other controllers

• Cable area behind the controller. You can either wrap the cable around the holder, or use a cable tie and just insert the bundle behind the controller

• Countersunk screw holes

OnShape Model
https://cad.onshape.com/documents/51c0b62bebe12ff774a98992/w/c5961d9492c32ca103498a85/e/f0bc08b1c1f36b954d9cc4bf?renderMode=0&uiState=680c92c04938be2f766ee709