Their official network drivers are called Killer and are very malware-looking ("unknown developer" blocked by windows). It's unbelievable. Looks like some weird spyware junk too.
No idea then. Maybe it's something to do with Windows 10, but it definitely was showing me tons of "software blocked" and "unknown developer" warnings.
Further tangent, but I remember seeing Killer NIC's booth at ComicCon in 2007 with that very cool, very pointy heatsink (I assume that is what it was, anyway...?).
Yeah with the wired stuff back in the day it was a little wild in that their idea was basically put a mini PC on a card which offloads work. Never really turned out that beneficial for gaming but it was at least unique. Then later in their life they just started OEMing Intel and Qualcomm NICs and sticking a driver layer for overcomplicate QoS which wasn't even offloaded anymore. The good news was if you just use the base driver it means you more or less end up with a standard e.g. Intel NIC though.