DC Power Adapter - 2.1mm Jack to Screw Terminal Block - Female
$1.50
Price in Singapore Dollars, including 8% GST of $0.11
If you need to connect a DC power wall wart to a board that doesn't have a DC jack - this adapter will come in very handy! There is a 2.1mm DC jack on one end, and a screw terminal block on the other. The terminals are labeled with positive/negative assuming a positive-tip configuration (which is the most common)