If you are trying to connect all your solar panels together in series or parallel, you are going to need several sets of solar panel MC4 cables. Check them out.
- MC4 extension cable for solar charging
- Specification: Length: 20ft, 14 AWG
- One cable with two pairs of MC4 connectors
- Good for solar system 120W, 105W, 80W, 70W, 50W etc