Kevin Karhan 
@xoagray and since #Lenovo stopped making #ThinkPad #CompactKeyboard|s with #wired #USB and I need a new #Keyboard for the #NUCbook anyway, I guess I've to get in contact with #Sprintek and get some #SK8707-06 - #FlexPoint™ PS/2 Pointing Stick Mouse Modules...
https://www.sprintek.com/en/products/pointing_stick/SK8707-06.aspx
https://www.sprintek.com/en/products/pointing_stick/SK8707-06.aspx
SK8707-06 FlexPoint™ PS/2 Pointing Stick Mouse Module (Detached Design) |Sprintek
The SK8707-06 FlexPoint™ pointing stick module is a cost-effective, space-saving, sensor-detached PS/2 mouse device deploying a Sprintek advanced pointing stick controller. The module partially implements the Lenovo TrackPoint® extended command protocol and can work with Lenovo TrackPoint® device drivers directly.