Under desk rack ear mount
thingiverse
You can use this thing to mount one unit rack devices underneath your work surface. You might have to reverse the direction of the rack ears on the mounted device. I utilized these to install two one unit power distribution units beneath my desk. While you could potentially attach things using the rack ears, I encountered difficulties finding screws with a broad enough base to grasp the rack ears, but not so long that they penetrate completely through my work surface. This solution aids in resolving that issue by gripping the rack clips and utilizing smaller screw sizes. I used 15mm long wood screws to install these beneath my table.
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