Wall-Mount / Desktop USB Holder 4x

Mount it on a wall with 3m removable tape
Put it on your desk or something

This thing has 0.5mm tolerances on each side of the slot, so it will be a loose fit. If you want it to be a tight fit (0.15mm), then scale it to about 95 ±1%.

Make your own tolerance by adding your tolerance (x) to 12, and then dividing this number (12+x) by 13. This will be the percent scale amount.

Made in OnShape, go and edit it:

https://cad.onshape.com/documents/44bea11a94f7828ef27fa1e2/w/bdcad83331dfa6efad51ab5d/e/fd956875da3c8d78834c3b0b?renderMode=0&uiState=61bfec525fd10b7f07d75215