Game port

Game port
A DA-15 connector on a sound card
Type Joystick input port
Production history
Designer IBM
Superseded by USB
General specifications
Hot pluggable Yes
External Yes
Pins 15
Connector DA-15
Pinout
Pin 1 +5V +5 V DC
Pin 2 B1 Button 1
Pin 3 X1 X-axis for joystick 1 (0–100 kΩ)
Pin 4 GND Ground for B1
Pin 5 GND Ground for B2
Pin 6 Y1 Y-axis for joystick 1 (0–100 kΩ)
Pin 7 B2 Button 2
Pin 8 +5V +5 V DC
Pin 9 +5V +5 V DC
Pin 10 B3 Button 3 (B1 for joystick 2)
Pin 11 X2 X-axis for joystick 2 (0–100 kΩ)
Pin 12 GND Ground for buttons 3 and 4 (or MIDI out)
Pin 13 Y2 Y-axis for joystick 2 (0–100 kΩ)
Pin 14 B4 Button 4 (B2 for joystick 2)
Pin 15 +5V +5 V DC (or MIDI in, sometimes unconnected)

The game port is a device port that was found on IBM PC compatible and other computer systems throughout the 1980s and 1990s. It was the traditional connector for joystick input, and occasionally MIDI devices, until made obsolete by USB in the late 1990s.

Originally located on a dedicated Game Control Adapter expansion card, the game port was later integrated with PC sound cards, and still later on the PC's motherboard. During the transition to USB, many input devices used the game port and a USB adapter dongle was included for systems without a game port.