The breadboard power supply is capable of powering your projects in three different ways either from a mini USB, micro USB, or any power supply offering 7v-12v.

Features of the ANT BBPS breadboard power supply. 4.0 V DC – 13.0 V DC input; 1.8 V DC – 12.0 V DC @ 1000 mA (12 W) output; Voltage output set at 10 mV increments ...

The power supply for the breadboard is often overlooked, with newcomers to electronics sometimes using a 9V battery and regulator or a cheap USB supply to get a quick 5V source.

A good power supply is essential to electronic projects. While there are many existing designs for adjustable power supplies, this one makes improvements that make it more useful for hobby designs.

The nicer ones even had a power supply or some simple test instruments. While you can still buy that sort of thing today, the low cost of bare breadboards have made them much more common.