The Evolution of Sim-Addicts Simulator Controllers

Development Board E.
USB powered.
8 axes inputs (4 analog, 4 encoder)
64 key keypad (keyboard emulation)
Improved Analog
Surface Mount design
Expandable

Development Board D.
USB powered.
8 axes inputs
16 key keypad

Development Board C.
USB powered.
8 axes inputs

Development Board B.
USB interface /analog/Encoder

Development Board A.
ISA Bus interface.
4 axes Encoder /4 button input
Joystick port 0x201 Emulation