The Tiny-Userport-Adapter is a version of the Scanntronik Userport Expander (rebuild) with a different layout.
It is mainly intended to serve as the shortest possible angle adapter while still providing a second slot (to the left) and the driven printer output.
To get the board small enough it was necessary to replace all through hole components with their SMD versions. Then all components had to be moved to the bottom of the board. Accordingly, the complete design had to be changed to a 4-Layer layout.
Last Update: 10.05.2022 
Tiny Userport Expander II
Board in the making.
The finished board