5A linear voltage-stabilized power supply module -3.3V-5V, this module with 4 LDO-based chip, to achieve 6V to 12V voltage reduction, output voltages are: VCC, 5V, 3V3. 5V and 3V3 have a total of 17 groups, and if not enough, you can also use the expansion port to increase the output port. This module integrates anti-back-back circuits to prevent the user from receiving back-to-back input power supplies and damaging the module.