Specifications: Description: DC power jack 5.5x2.1mm, female, 3 pin w 2 active ones, and the one on the right is for mounting stability. You can solder leftover pins onto the jack and then press it into your breadboard. Otherwise, good for motherboards, system boards, and other such circuit boards. With Screw thread, you can fix it on a panel or on the wall, and put a male jack on it.
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