I ordered this projector shelf and it works great for this purpose. It is made of medium-gauge steel and has a fairly short edge. I wouldn't put much weight on it if it was attached directly to the drywall. This can easily be fixed by mounting it on a piece of wood and attaching it to the drywall (or to the stud behind it). The two slots on the back of this shelf make it easy to clean cable management and was a main reason I chose this shelf.
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