This is a snap-shell for the Famicom Everdrive N8 with a hole for the optional, user-installed, USB port.
There's some information about installing the USB port on the Krikzz forum. The tools to use the USB port are linked from the edn8usb repository on GitHub.
The [label used in this photo](labels/Famicom Everdrive Green.png) is a modified version of the labels available on this forum thread (cached here). They should be printed at about 9cm x 4.3cm in size.
Original model by Blackchamber from Thingiverse, relicensed¹ under CC-BY.
Uses snippets from NopSCADlib for the USB and micro-SD portions, licensed under the GNU GPL v3 or later.