Solar Panel Cable MC4 T Branch Parallel Connector Pair FF/M and MM/F One pair of T-branch MC4 solar panel cable connectors? one female to two male (F/MM) and one male to two female (M/FF) TUV certified Max current 25A Standard MC4 connectors with self-locking key allow instant easy installation Sunlight, ozone, and UV resistant; Moisture resistant; Waterproof