Duinotech Arduino Compatible Breadboard Power Module

Your breadboard's a spaghetti mess of jumper wires and a USB cable dangling off your laptop. This fixes that. It plugs straight into most breadboards, the concave horseshoe shape tucks under so you don't lose prototyping space to the power supply. Flip the switch for 3.3V or 5V. Feed it from USB or a DC barrel jack. Clean rails, no extra wires, and your build stays tidy

• Plugs directly into most standard breadboards — no soldering
• Concave horseshoe design keeps prototyping space clear
• Switchable output: 3.3V or 5V
• Power via USB port or DC barrel jack
• Arduino-compatible, works as a standalone bench supply for small builds