Exactly! It used to be my b&w Yosemite G3 was the bridge, but it's at my parents' house so I no longer have access to it. This desktop G3 is even better since it has serial ports. With the Yosemite, I was fortunate to have an LC with an Ethernet card, so the LC was technically the bridge.
Having a USB card is just icing on the cake, so to speak.