wall USB and SD card holder

I found myself surrounded by ton of usb sticks , card readers and sd cards laying down on my table so decided to do something about that.
i designed it around the already existing holes on the wall , but you can stick it anywhere with double sided tape.
No need for supports.It looks like i draw in wrong plane all the time , so just orient the print so flat side is on print bed.
On left side and bottom are extension pins , if in future i decide to add something else on it or i get more usb sti