Sorry for the confusion. I think I figured it out.
So I have a bunch of Lian-Li unifans connected to their USB hub. This USB hub is connected to the motherboard sysfan 3 connector.
However, the cable that connects is only a single wire to the PWM pin, so it is not reporting a fan speed and...
Hmm you are right. That is actually the pump RPM's, not even a fan. I guess for some reason it doesn't report the speed from the system fans even though they show up in the bios.