Vemote Solar Panel to SAE Adapter Cable 10AWG, Compatible with MC4 Solar Connector, 50Amps for Solar Panels RV Caravan Battery Charger Kit,with SAE Polarity Reverse Adapter (60Cm/2FT)

I bought two sets, and only one had a polarity adapter. You need that for all harbor freight solar panels.

fast shipping, worked as designed to convert from SAE to MC4

Works as advertised for Zamp style connections

Good quality and at times I wish I had gotten a longer cord. Works great and was much needed.

Impressed with speed of delivery

Did the job as needed. Good quality.

Includes the reverse polarity adapter which was needed for the thunderbolt panels from Harbor Freight

What I ezpected

Easy instructions

I used this cable to adapt a 100W Harbor Freight panel that only came with a SAE connector. The benefit of this adapter cable is that it also came with the polarity reversal adapter which is absolutely necessary to use when you are using this adapter to go to MC4. Theres probably going to be 1-3W of power loss when compared to straight MC4, but its a non-permanent solution that I was using for testing purposes. If I kept the Harbor Freight solar panel, I wouldve just installed MC4 connectors directly. Not much else to it, pretty good quality cable and it has a plug to cap it. Although the plug isnt long enough if you use the polarity reverser.