ALEKO TS-C03 Y Type MC4 Solar Style Branch 1 Male to 4 Female and 1 Female to 4 Male Panel Cable Connectors 1 Pair of Y Type MC4 Solar Panel Cable Connectors: F/MMMM and M/FFFF Quick & simple assembly processing and simple removal of plugs without the aid of any extra tool Resistance of extra high & low temperature and fireproof Double seal rings for better waterproof effect Compatible with PV cables with different insulation diameters