The MC4 Style Solar Connector Kit provides all the components needed to make one MC4-style connection used in the installation of REDARC
MC4 Parallel Pigtail Adapters
MC-4 Parallel Connectors Y Style Male-Female Branch Set SLCBL-46
MC4 Style Y-Adaptor Kit
Solar Energy products - MC4 1:4 Y Branch Connector Male & Female SET
Solar Branch Connectors Y Connector for Parallel Connection Between Solar Panels FMM+MFF (1 Pairs) - AliExpress
1 Pair Y Branch MC4 Parallel Connector Cable Connectors Solar Panel Adaptor M/FF and F/MM for PV System
Multi-Contact MC3 to MC4 Adapter Set altE
Redarc MC4 Style Y-Adapter Kit
3 in 1 MC4 Y Branch Connector Connecting Multiple Solar Panels – SmartEshop
Pair of Y Branch MC4 Connectors — Craig Solar