Robust 5V USB fan speed controller

Love the XY-FS board and this general enclosure. However, my use case required more robustness, as the USB ports on the XY-FS are not very robust to movement, cord tension, etc. So I modified this enclosure to have a bit more heft, and protect the USB ports on the board. I also have a pair of extension USB cables (USB A M to USB A F), which I leave permanently attached to this device, and fill any gaps with either shims (attached) or hot glue.