The controller is top, the receiver is flop. Having the receiver from the PC and then wanted to join him again, neither the LED has lit up, yet he was recognized by Windows. The problem: Too sensitive fuse on the bottom of the board (marked F1) that can druchbrennen peel off from the USB port. That's why only 2 stars, actually it would be 5 but the recipient is also too big for what he does and breaks too easily.