Giosolar 1 Pair 30A MC4 T/Y Branch Connectors Solar Panel Connector Set Y Splitter Coupler Combine Giosolar MC4 Y/T Branch Connectors provides a quick and easy parallel wiring solution for solar panels, Compatible with all MC4 solar connectors. Simple on-Site processing; Quick,Water proof and dust proof, it can be used in harsh environment and in any weather conditions It does not need extra instruments for the removal of plugs, removal will not cause any harm to plugs. High current carrying capacity Compatible with MC4 Connectors, also Known as MC4 T Connectors with Self-locking key Allow instant Easy Installation