Check the listing for details. Solar Panel Y Type Branch Connectors MMF+FFM Cable Adapter Compatible with MC4. Color: Black, Condition: New. Listed at 8.99 USD. Solar Panel Y Type Branch Connectors MMF+FFM Cable Adapter IP67 *Compatible with MC4 Connectors Sold as 1 Pair, 2 Pairs and 10 Pairs (select quantity) Y Type Branch Compatible Connectors are designed for the wiring solar panels in parallel. Branch connectors help to maintain the voltage of the solar panel configuration to match battery size. The connectors are compatible with MC4 connectors and each pair come with one male (MMF) and one female (FFM) connector. Our Y Type Branch Connectors seal to make a nice tight fitting waterproof connection. Specifications:Withstanding voltage: 1000V DC(TUV), 600V(UL) Protection Class: Class II Contact Resistance: 1mTemperature: -40°F to +194°FProtection Degree: IP67, Mated Unmating Force:147.51Ft·lbInsulation Material: PC/PA Contact Material: Copper, Silver PlatedFlame Class: UL94-V0 or UL94-5VA