This mount can be used if you want to mount the USB stick somewhere not directly in the USB port (which is very much recommended due to interference). It has two small holes in the back for screws but I just taped it to the wall.

It holds the stick at the sides and the bottom and has a big enough cutout to connect the stick to a USB extension cable.

Printing on my Prusa Mini took only around 50 minutes including supports for the top "edges" holding the stick.