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A single 40 ft solar extension cable from Renogy, built with 10 AWG copper wire and factory-terminated MC4 connectors. The heavy gauge keeps voltage drop low over the long run, which matters when panels sit far from the charge controller. It is a straightforward single-cable purchase, so a full run needs two. Rivals sell similar 10 AWG MC4 cables in pairs or shorter lengths, so check whether you need one cable or a matched set.
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Lowest price we've seen: $36.12 on Nov 10 at TWIST. Tracked across 2 stores since Nov 10.
Buyers of Renogy solar cabling generally report solid build and connectors that mate cleanly with Renogy and other MC4 gear. Complaints center on buying single cables and on stiff, thick wire that is awkward to route.
This is a solar panel extension cable from Renogy. It is 40 feet long and made from 10 American Wire Gauge (AWG) cable.
The cable has MC4 male and female connectors. It is sold as a single cable.
