This is a PSP stand made by OtherMod as part of the PSPi project. I have just modified it to support gridfinity.
There are 2 versions one is the stand as is but the back on it will interfere with other gridfinity items that a at least 2 high. The other version The PSP will lean back and touch bins that are 3 high but the PSP will just lean forward a bit
The author remixed this model.
Added Gridfinity support