Mike,
I am afraid you got it wrong here. From the Pa800 specs:
"2 Host Front/Rear (2.0 Hi Speed) and 1 Device Rear (1.1 Full Speed) connections"
The two USB 2.0 host ports (one on the front and one on the rear) are for connecting flash drives, external hard drives and cd/dvd readers. They are definitely USB2. I have currently a flash drive and a cd/dvd reader connected directly to my Pa800.
The USB 1.1 device port on the back is primarely for MIDI communication and USB 1.1 is more than fast enough for this.
Kind regards,
Tommy
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Yamaha PSR-S770, Korg Krome 61