I wanted an external USB connection for my Hiker Trailer to power some awning lighting, but no one makes what I was looking for. This was printed with Prusament PC Blend and NinjaFlex Chinchilla. The design is similar in appearance to https://no.co/products/accessories/gcp.
A 2" hole will be needed to make this fit.
This was made to fit this USB/ Voltmeter combo, others may fit, but you will need to check the dimensions on the product page.
https://www.amazon.com/gp/product/B08C33YXXL/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
Fusion 360 file is attached, modify it to suit your needs. Please do not beat me up too much on the fusion work. I'm still a newb.
The author hasn't provided the model origin yet.