JOY BOARD-98 (SNE) Atari specification C bus joystick I / F. Not compatible with Windows 95.On board There are 3 jumper switches. ・ JP1: I / O port address setting  1 Short ■ 0188h to 018Ah (factory setting)  2 short ■ 0288h ~ 028Ah ・ JP2: I / O port address setting  1 short ■ E7E0h to E7E7h (factory setting)  2 shorts ■ E5E0h to E5E7h  3 short ■ E3E0h ~ E3E7h ・ JP3: Setting of machine model  1 short ■ model with built-in FM sound source  2 short ■ model without built-in FM sound source