The gamecube controller connector is essentially firewire. I don't know the precise figures, but I do know that when it was announced, it was proudly boasted as each connector was "faster than USB!" Of course USB 1.0 was the standard of the time. Point is, if you maxed out all four ports, my guess is that it would be beyond what a single USB 2.0 port could sustain. Hence, two.
![[Image: RPvlSEt.png]](https://i.imgur.com/RPvlSEt.png)
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