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DA15S connectors are used for PC joystick connectors, where each DA15 connector supports two joysticks each with two analog axes and two buttons.
In other words, one DA15S " game adapter " connector has 4 analog potentiometer inputs and 4 digital switch inputs.
Some joysticks with more than two axes and / or more than two buttons use the signals designated for both joysticks.
Conversely, Y-adapter cables are available that allow two separate joysticks to be connected to a single DA15 game adapter port ; if a joystick connected to one of these Y-adapters has more than two axes or buttons, only the first two of each will work.
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