MB102 Breadboard Power Supply Module 3.3V/5V For Arduino Solderless Bread Board

This Solderless Breadboard Power Supply Module makes powering your prototype a snap. With a standard 2.1mm barrel jack you can power it with a 9v battery using a snap-on connector or a wall-wart. With a convenient ON/OFF button switch with indicator LED you don’t have to keep plugging in and unplugging your power source.