For the small network rack at my house I use the EMS easyPatch 24 Port Keystone Patch Panel which has four removable snap-in modules. Since I'm not using all 24 ports of the panel I figured I could occupy the space with the Raspberry Pi 4 that runs Pi-hole.
Here it is mounted in my home network rack.
https://johnzanussi.com/posts/rack-mounting-home-assistant-yellow
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