I built myself a 1U server using off-the-shelf parts I had lying around to run my Proxmox instance. I wanted to expand my cluster & also give myself a dedicated node for Plex (so that it could have direct access to the CPU w/ QuickSync) so bought myself a Beelink with an N100. The little Beelink sips power and has never once stuttered while streaming Plex. Going forward, I plan on replacing my 1U server with a cluster of Beelinks.