1. Compatible USB1. 0/2. 0 & PS2 port. 2. Support up PC flip game, 2 ways signal out put controlling. 3. Ergo no mically shaped for comport and control. 4. Particular foot pedal, good for reducing the press offoot. 5. With 2 operating modes: Digital; Analog with TURBO function. 6. Attach wheel to tabletopor or on the feet, diversified operationg for racing into wonderful games.