niceeshop(TM) One Female to Three Male (F/MMM) and One Male to Three Female (M/FFF) MC4 Solar Panel Cable Connectors,Black Material:tin plated copper and insulated PPO;Size:15x12x1cm/5.9x4.7x0.4inch Compatible with PV cables with different insulation diameters Resistance of extra high and low temperature and fireproof Quick and simple assembly processing and simple removal of plugs without the aid of any extra instrument Load capability with big current and high voltage