This is a set of two. Please be aware that some products with black connectors and Chinese writing are in circulation. If you need more than one set, please contact us and we will accommodate your request. All wires are connected except for the 7th key. Supports Test, Service, Coin Switch 1 and 2, Coin Counter 1 and 2, 5V, 12V, -5V, and up to 6 buttons, and is also compatible with extended JAMMA. Use this to extend the JAMMA connector in your cabinet or control box. The board-side connector is gold-plated for corrosion resistance and excellent conductivity, reducing the chance of poor contact. Please cut or rearrange the wiring as needed.