端子用 2.1mm バレルジャック

great product and good price worth the money

Great product to allow me to tie in other power sources.

I find many uses for these, it's a great part to have around if you don't feel like soldering.

Handy for connecting power to the Arduino.

Many volts went in and, shockingly, just as many came out. It was quite the opposite result on the RB-Dfr-182 product. I couldn't be more pleased.