3.3V/5V Breadboard Power Card
YwRobot 3.3V/5V Breadboard Power Card
A power card made by YwRobot, specially for breadboards. This card is very useful for learning, programming and using Raspberry Pi or Arduino. It has dual power pins, dual jumpers to adjust the current between 5V and 3.3V, a power switch and an adjustable female USB port.