These 10AWG Red/Black Extension Cables with MC4 Connectors seamlessly integrate your solar array to the PV input of your solar charge controller. Made with heavy-duty 10AWG wire, the 10AWG Red/Black Extension Cables with MC4 Connectors support higher current loads with minimal voltage drop. The integrated MC4 connectors provide simple, weather-resistant plug-and-play connections in solar applications. Available in 25FT and 30FT options.