Multiboard's panel snap connectors :) helpful if you want to connect mutliple panels without any wall to attach to other than on borders (e.g as back panel for IKEA BROR shelving unit in my case :) )

Printed with PLA
15% infill,

adaptive hex

25.06.25

Added hollow sockets.

Now it is possible to connect them from back/front and still insert additional sockets that are compatible with default ones.

Works like a charm