| Pin | Name | Description |
| 1 | GAMESW1 | Switch input 1 (sometimes called paddle button 1). |
| 2 | +5V | total current drain from this pin must not exceed 100mA. |
| 3 | GND | System ground. |
| 4 | | Not Used for hand controller. |
| 5 | PDL0 | hand controller input. Must be connected to a 150K ohm variable resistor connected to +5V. |
| 6 | N.C. | Not connected. |
| 7 | GAMESW0 | Switch input 0 (sometimes called paddle button 0). |
| 8 | PDL1 | hand controller input; must be connected to a 150K ohm variable resistor connected to +5V. |
| 9 | | Not used with hand controller. |