I made this little support to attach my TP-Link ethernet switch under my desk. It's a TL-SG108 model, but I think the support might fits others switches from this brand (but not the Netgear ones, because of the fixations holes...).

(For a Netgear, see : https://www.thingiverse.com/thing:3000525 )

NB : I've had a problem while printing this part, so you might notice a "step" on the photos. They're not part of the design :/