[TMWNN]

I guess the best choice would be something built on Raspberry Pi? Like PiKVM, or TinyPilot (both frequently discussed on HN)?

[jdboyd]

I've been interested in (but haven't yet tried) the BliKVM devices that are a for of PiKVM but are on a PCIeb card to put the device in the server. First generation from them used Pis the second switched to some other Linux SoC.