These cables are used to concert between Multi-Contact (MC3, Solarline1) and Multi-Contact (MC4, Solarline2) cable connectors. Most often these connector are used to adapt a different solar panel connector on to a solar field.  The solar cable itself is only 6" long. The wire is a black UL listed 4703 37 strand 10 AWG sunlight resistant cables. They have a male MC4 connector on one end and a female MC3 connector on the other end. Use them to adapt a MC3 harness or connection to a MC4 harness or connection. Made in the USA. Shipping weight 2 oz.

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