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Polarity shown in Photo 
Has anybody else noticed that the wires in the product photo are not consistent? The red wire connects to the Male connector on one end but connects to the Female connector on the other end. Same for the Black wire. Unless polarity reversal is desired, wouldn't you want the red and black wires going to the same commectors on both ends? Just saying....
Handy cable to have
Polarity schmolarity, I cut these in half and connect the red wire that is NOT EXPOSED on the plug to a battery + (SOURCE) and then black to ground. The other connector goes to the LOAD. When disconnected, only the SOURCE ground is exposed. The LOAD red is exposed but it shouldn't be energized. Stay safe.
Good for Homebrew Bicycle Lighting Systems
I use this for bicycle lighting systems. I used to use Molex crimp pins and housings, but the molded connectors on this harness are more reliable, and more weatherproof.
Interchangability 
All Electronics discontinued #CON-26, but this #CON-320 is interchangable. By coincidence(?), the Radio Shack number for it is 270-0026 for $3.49. The price is at the local automotive supply store is equivalent. There it is sold as electrical connector for trailers. So, if you can do without the blister pack and header card, then purchase CON-320 and save $1.99 each. Actually, I got >10 each so the price dropped to $1.35 for each pair. I do not have 10 trailers, rather use them for bicycle light connections and also in transportable modules of model railroads.
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