This is a simple three wire cable. Great for jumping from board to board or just about anything else. There is a 3-pin JST connector on one end, bare cable on the opposite end. It also comes with the mating connector for the JST.
This uses a 3 pin JST PH connector.
This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.
Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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I purchased an audio amp board that required a JST connector for the channel split, and didn't have any dead cooling fans laying around. These jumpers did the trick and now my powered speakers are up and running.
Whatever you do, don't pass these to your assembler using the colors to identify where the other end goes. After years of getting them as red-black-yellow, we started getting blue-red-black. Seeing as I printed a few hundred boards using the old pin layout, I now have black to +5v, red to signal and blue to ground. Super confusing to try and maintain :/