A slim case for the ESP8266 NodeMcu V3 CH340 micro-USB micro controller boards I picked up on AliExpress NodeMcu-CH340-V3.

The style of this case is inspired by the Raspberry Pi Pico snap-together case by @glabifrons

Designed for 0.2mm layer height, but I've also printed at 0.28mm  

STL, STEP, and Autodesk Fusion model file included.