XAC and SAC compatible. A compact diamond array of 4, 24mm buttons. This tight pattern is great for those with mobility issues where finger range of motion is of concern. Each button is wired to an individual 3.5mm input (not shown). XBOX Adaptive Controller (XAC) and full size Quad-D are shown for size reference only and are not included in the sale price. Please specify 4 colors or all white buttons when ordering.