2.1mm DC Power Plug
2.1mm DC Power Plug
2.1mm DC Power Plug
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2.1mm DC Power Plug

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$1.10
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$1.10
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$1.10
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These DC Plugs are perfect for powering Arduino Uno and Mega boards (use male cables as the boards have female connectors). 

They come with a ~15cm long cable with ends pre-stripped and ready for soldering to your circuit board.  One of the two wires is coloured with white stripes, indicating the +ve terminal. 

We use ours for prototyping circuits, coupled with the DC Power Supply.  We also recommend double checking the wires with a multimeter for continuity before use.