UPDATE !
Two flat versions of the previous one.
Also a compact version of this cable adapter with an angle of 45 degrees. For this adapter you need two M3x12 and four M3 nuts.
The author remixed this model.
Ive changed the original one by Thr333DDD a little bit.
The top adapter hasnt a longhole anymore, hexagon for nuts and thicker for more stability.
The mid adapter is only thicker.
Its not neccessary to extend the cable !
Absolutely maximum of depth is 55cm (21.5inch), for example in an enclosure.