The SMD type 5-pin header socket connector can be easily bent by external force.
Therefore, when handling the Internal USB Board or attaching/detaching a USB device, be careful NOT to apply force to the header pin socket.
.
The Internal USB board is simply composed of a 5-pin header socket, USB 2.0 host connector, and USB power protection circuit
.
.
The WiFi Module 5BK is connected to the Internal USB board
.
.
Align it with Pin #1 as shown in the picture below and connect it to the M1S 14pin header
.
.
When viewed from above the board, it looks like the picture below
.
.
There is no internal interference, so it can be used with the top case assembled
.