Additional part for the 2.0 version of the computer holder from 76 Projects, which is available here . You need this adapter to attach a GoPro camera, Notio, light or other small parts to the bottom of the computer holder. Attention: this is only about the adapter, all other components are not included and there is not the lamp, GoPro or anything else in the picture!
Here you can see what it looks like assembled and as a moving image.