Master System:Connector Pinouts

AV Out
Note: Connector is the female end at the console. This connector is not present on the NTSC and PAL Master System II.



Controller Port
Note: Female is connector at the console. Male is connector at the controller. Diagram pictured is of the connector at the controller end. This pinout is mostly identical to the SG-1000.



Mark III Expansion Port
This expansion port is only found on the Mark III and is mostly identical to the one in the SG-1000 and SG-1000 II.

Note: Pins are numbered from left to right with the edge of the connector facing forward.