Need 3.3V or 5V to run your projects? Then here is the module for you!  Switchable between the two voltages, with 2.1mm power socket and the option of screw terminal or male/female header, this module gives you up to 1A current.  Includes protection diode to save you form reverse voltage distruction of your projects.

This module is pre-built and requires no construction, except for adding breakaway headers or soldering wiring directly to the board.