This is a 3x1 gridfinity bin designed to store USB wall chargers with a North American style plug. The bin has holes on the underside for press fitting 6x2mm magnets if you so choose. It is 4 units tall, and has a lip so you can stack additional bins if you don't fill it up.

You should be able to comfortably store 4 chargers in here, but might be able to squeeze a fifth in if they're small enough.

Inspiration came from a model seen in this Reddit post, but the model on Printables has been deleted.

https://old.reddit.com/r/gridfinity/comments/wkzsrk/2nd_drawer_pretty_much_done_ikia_alex/