Internal USB ports

Mainboard is more or less the same. For maximum core compatibility, only one USB host port is routed to the core.
The USB host port is then multiplexed into 4 downstream device ports with a GL850G usb hub chip.
These four ports are then routed to:

  1. The cpi keyboard (pogo pins connected)
  2. A type-A port along the mainboard edge
  3. and 4 to the mPCIE connector
    • the 4G dongle most probably takes one of that

The question is whether they leave pads/pins for the last usb port on the 4G expansion board.

If so we can expand it like this: Internal USB hub mod

1 Like