You can also buy discrete bmc pci cards from a few different vendors. I believe super micro sells them, but I've always loathed any environment that uses super

You can also buy discrete bmc pci cards from a few different vendors. I believe super micro sells them, but I've always loathed any environment that uses super micro servers as they tend to be low to mediocre quality compared to the "big 3" tier 1 server vendors.