Power Supply

This is a 3.3V/5V breadboard power supply module which provides a dual 5V and 3.3V power rails and has a multi-purpose female USB socket. This Power Supply Module securely fits in any standard 400 or 800 tie points breadboard also features reverse polarity protection, the module can take 6.5V to 12V..

5V 3A Step Down Power Supply Module - Adjustable Buck Converter..

LM2596 is a step down power regulator which converts DC to DC voltage. It is adjustable in +1.23 to 35vdc and capable of handling load up to 3A, though the typical output is 2A. It is best suited for battery operated devices to provide regulated voltage. This is an LM2596 DC-DC buck converter step..

XL4015 DC-DC 5A Adjustable Step-Down Power Module with Heat Sink..