The Subway is USB 2.0, not 1.1, but the speed is limited by the A1200's Clockport.
Meeeeeeep wrong !
The chips used on SubWay,HighWay and Algor are USB1.1 chips. The SubWay doesn't even reach full USB1.1-"highspeed" due to the limiting clockport.
But all USB2-devices have a fallback to 1.1 so there shouldn't be bigger problems except for the lack of speed.