Intel line of server motherboards have iKVM built-in but it must be enabled with a separate licensing module that plugs into the motherboard. I got one recently and was curious as to how this “license” works.
For the AXXRMM4LITE module, it is a single SPI flash (Winbond 25X10CLNIG) with an 8-pin connector. To my surprise, the flash is completely empty. The BMC/BIOS only checks for the presence of an SPI fash.