Neutrik NAC3MM-1 PowerCON Coupler Joiner Link. PRO 20A NAC3MPA-1 to NAC3MPB-1, designed to enable you to combine two powerCON connectors of the same or different genders. If you are in need of a powerCON coupler, this may be the ideal solution for your power supply needs. It features a rugged and durable casing that is built to last. Made in Liechtenstein, this coupler is highly reliable and will help you achieve a strong connection every time you need it.