Im putting up Xmas decorations and it turns out many of them are the same voltage so I am consolidating power adaptors.
I got a couple from trade Tested (https://www.tradetested.co.nz/p/home-outdoor-living/solar-lights/garden-lighting/12v-lights/plug-play-splitter-hub-12v-5-way?gad_source=1&gclid=Cj0KCQiAgJa6BhCOARIsAMiL7V_oxAA8ehsYEZ0EvCigvuWwWtMTHAInX9Z4AuwyZv9SOSiHrqkYuTIaAhPJEALw_wcB&gclsrc=aw.ds> which did fine for my 12v devices, but I can't find ones for 5v devices.
Even aliexpress doesn't seem to have them - m16 turns up ones without the notch in the top.

Any ideas?
is this a standard connector I can search for?