SHNITPWR AC Adapter 120W Universal Power Adapter 4V 5V 6V 9V 12V 15V 18V 19V 20V 24V Adjustable Switching Power Supply 100V~240V AC to DC 4V ~ 24V 5A Converter with 14 Tips & Polarity Converter

Need this for testing numerous tablets & notebooks I don't have working power supplies for. It works very well for the 3 I've tried this far. All different connectors and voltage requirements. The connectors seem well made & fit well. Especially love the polarity reversing cable as several I have use the negative center rather than the more standard positive center.

Honestly I have no adjectives to describe how good this thing is. And you might think am exaggerated but I'm not. First it is really sturdy and doesn't look cheap at all due to how heavy it is, i hate light products because that tells you how cheap they are and second the current output is just perfect. No more no less than it says on the led screen. And I've tested it so many times with my voltmeter and its always on point. Great stuff here product vs money.

I rarely write reviews. I am making an exception for this product. I bought a used Brother QL-820NWB Label printer that I knew ahead of time was missing the power adapter. I went on Amazon and ordered T POWER Ac Dc Adapter Charger for Brother QL-810W QL820 QL820NWB. When the printer and adapter were delivered the barrel connector on the adapter did not fit the printer. I was definitely upset because the Amazon ad specifically stated that the adapter would work. I didn't want to take a chance for another mistake from a vendor and decided to go with this universal adapter that has a variable voltage. The Shnitpwr AC/DC Adapter is a godsend. My printer required 24 volts and 3.6 amps. The rating for this adapter is 3v to 24volts and max amps of 5. I am happy to know that I now own a power adapter that can easily be used for many devices that I own no matter their power requirements.

I'm going to say this first so people see it immediately the small extension they give you with it that looks like it's just to make the cord longer is a reverse polarity adapter don't find out the hard way like some people have. That being said this otherwise is an amazing unit I wish they would put a sticker or something on that adapter to warn people as it is not marked at all. The fact that you can adjust it to any voltage within its range is fantastic for working on small electronics like I do. The plugs that come with it cover a substantial amount of different Electronics. It would also be nice if they added a small expansion set for the few odd ball barrels they don't cover I would even buy it separately. I highly recommend this unit it has saved me a lot of hassle. Another cool thing is that it has a connector with just two wire lead spots to do positive and negative bare wire coming out of it I've used that quite often it's very handy.

This is a terrible power supply. I tested the power from it on my oscilliscope and it was nasty and dirty. I tried used it anyways, and the product I was trying to use it on, would not work properly. I borrowed another power supply from something else, and it worked perfectly. The voltage display is fairly accurate within 0.05vdc when I tested it with a Fluke 179 multimeter. Cheap, no name, poor quality power supply, essentially ewaste. DO NOT BUY!

As a retired Engineer I have countless small electronic devices and gizmo's that most of which have a (sick) custom power brick and plug.Powering and charging them all while finding outlets for the equally countless chargers takes up lots of time and space. If only there was a better way.Enter this device (and ones like it).Supplied with a generous amount of different tips (and a polarity changer, +universal bare wire block!), simply select the correct tip, dial in the needed voltage and PRESTO - you can ether use (for low power devices) and/or charge your device!I keep one at home and one in the RV (it replaces countless "wall warts").While NO it won't power and charge your high power consuming device at the same time (after all it is only "up to 120W") it is decently compact device with variable voltage output in a decent package at a decent price point.Highly Recommended.

a1

Not 3 prong. Only a 2 prong