Universal Power Supply 3V~24V 3A 72W Adjustable Variable 3V 5V 9V 12V 18V 20V 24V AC/DC Adapter Charger, 100V-240V AC to DC Converter with 14 Tips, Polarity Converter and 4-Way Power Splitter Cable

Performs as advertised. Plenty of various format connectors. Good value for money.

Excellent in every way possible

Highly functional adapter. Adjustable output voltage and variety of plug types make it great for testing and as a replacement adapter. My only caution is there is no way to lock the voltage so be sure not to bump the knob.

Nice adjustable power supply for micro electronics development. It would be nice if the voltage selector would click into place. The totally analog knob makes it difficult to exactly pick a voltage value.

I am more or less happy with this set, but what really upsets me is that they DO NOT PROVIDE A CASE TO KEEP ALL THE PIECES TOGETHER!!! It doesn't have to be a fancy thing, a cheap soft-sided zipper case or a clear plastic box that clips shut. This is not my first set of these and every darn time I get them, part of it disappear/gets misplaced so I have heads with no electtrical part or electrical part with no heads. Can't y'all just package this with a case, please!?!

Did great ! This was from the 1980s and I had no idea how much power it needed. Now I know and can get an adapter that's right and just wire it.

Great purchase and fantastic to buy from!!

I used this to force a charge on some older batteries where their charger wouldn't recognize them due to low voltage. It worked very well. Small movements on the knob can change the voltage a good bit so be easy. Has all kinds of different connectors for various applications.