S-300-5 Power Supply 110/240v input 5v 60a 300w output

We purchased this a while ago for a project but never needed to use it. This one can put out 60 amps at 5 volts for a total of 300 watts. You can wire an AC cable as an input. Great value for the price. We only have this one available at the moment.

This also has the voltage adjustment knob so you can fine tune the output voltage. Haven't checked how high or low it goes but it may be possible this can be adjusted to a 4.2v output. Just not 100% sure on that.