Your keyboard connector looks small. There are 8P8C (8-pin, 8-connector, etc), 6P6C, and 4P4C plus maybe more.
The Wyse and some others are only 4P4C which will fit (improperly) into an ethernet (nominal 8P8C) socket but you are not likely to find satisfaction that easily.
Where are the Dolch experts and why are they not speaking up?