But isn't there another USB stack option besides Poseidon? Danged if I can't remember the name of it though...
Also, the thread's creator initial question was about the speed, so...
From what I understand, the Spider is the only card that can do full USB 2.0 speeds.
For what it's worth though, since this speed increase doesn't do much in the Amiga Classic machine world unless you are going from one USB device to another...