Synology RT2600ac Wall Mount Adapter

Lovely router by all reports (I haven't actually set it up yet), but the steep angled legs make the built-in mounting slots rather ridiculous. They're an inch away from the wall and tilted at about a 26-degree angle.

CAUTION: Synology's instructions for this router say simply to place it on a flat surface and make no reference to the keyhole slots underneath. There is also a safety note, "Place the product right side up at all times." Possibly I'll have gone to all this trouble just to cook m