I have found rack19" power distributors, made from aluminium profile (pic here) and slide-in modules - in my was 3x 3sockets module, and power-switch.
Because my distributor have 2 sockets damaged - I trow 3-socket-module and make power-meter-insert (for Keweisi KWS-AC300 power meter, from aliexpress)
Because in markets you can found different powerdistributors from this system (without power-switch, with 8 sockets, with C13 sockets, etc) I made different inserts - for classic 22mm power-buton, for 18mm switch, for rectangle rocker switch, and without switch (smaller one, like 2 sockets)
Printing - printed from PETg, face down, with support (from PLA if you have multimaterial printer) - sample file for orcaslicer included
The author marked this model as their own original creation.