This cover can be slid on the metal frame to cover up the power LED, which is very bright. Especially when there is no USB connection established but the unit has power (e.g. the computer is turned off), the LED flashes, which illuminates enough of my apartment to annoy me at night.
Suited for probably most of the Steinberg interfaces from the UR series. I have the UR242, but the “metal frame + LED” placement should be similar enough for most of them.
https://www.tinkercad.com/things/8L22Cn6Ov7V
The author marked this model as their own original creation.