Adjustable Power Supply with 2.1mm / 5.5mm DC - 3V to 12V at 5A

Put your Snap! cassette on and sing along to "I got the power!" with this super useful power supply adapter where you can easily change the voltage with a snap of your fingers. On the front is a potentiometer knob and a LED 7-segment digital display. Twist the knob and look at the output voltage to range from 3 to 12V DC. It's kinda like a benchtop supply you can take with you anywhere. Or if you don't wanna take it anywhere, it has six mounting holes for a more permanent power supply spot.