Crazepower One Universal Laptop AC Adapter 19V 3.42A 65W Battery Charger Lightweight Slim Version US Power Cord Power Supply Replacement For Lenovo Y G U Series Asus laptops Blue Color

Pros:1) I use it with my Lenovo U430 touch but had to buy a connector adapter (I found it with this specification: female 5.5 / 2.5mm round to square male head power adapter cable for lenovo black part number 366830) which is a round to square adapter.2) Also tested it my Intel NUC 6i5SYH and it worked fine too.3) Power factor (pf) is 0.53 compared to original power brick from Lenovo that is 0.47 (small improvement).4) Does not get hot. Sometimes just lite warm.Cons:1) Cable should not be mounted 90 degree angle on the brick (must be very careful to avoid breaking it)2) Should be made easy to open the brick for fixing if necessary (it is built in a way to avoid maintenance).3) I believe that pf should be better than 0.85 to be considered a "greener" solution.

I bought this adapter for my laptop , this would have been great for travelling but the problem it does not work.There is no DC out put I try it on the laptop and also the usb on my cell phone.Returning this item to China the shipping if I send it with tracking it will cost more then the adapter.Well just had to take my chance with first class.I just hated packing and lugging the large original adapter around. Wrapping the wiring around the adapter and forcing it into my bag was a drag especially when in a rush for a meeting. The Crazepower has simplified everything and it also has a USB port to charge my phone without bringing another adapter for that. Thumbs up from me!

THE smallest, lightest, best adapter. Barely gets warm running the computer AND charging the batteryb

There was a similar item called "Dart" on one of the crowdfunding sites, that looked exactly the same, but it was really delayed, so I thought there's some inherent difficulty in this technology, and that this may be some kind of a con... but, I was pleasantly surprised. It's charging nicely as I write this, and iphone is charging from the usb port. It's half the size of my Toshiba Dynabook R64's original brick that I'm using. The body does get hot. Not burning up or anything, but it's hard to hold it for more than 20 seconds. I need to see how durable it is, but all in all, I am really satisfied.

Price is reasonable and It is really nice.

It's in a different league to the Zolt and finsix dart. I'm an engineer so I was curious to see how they could make such a small adapter so cheap. Turns out they skipped the FCC compliance (even though they slapped an FCC label on there) there is literally no interference filter, the thing spews out radio waves. (30dB over the FCC limits) This could interfere with hospital or airplane electronic systems so it's really a concern that it's for sale on amazon.They also skimped on heat management and testing. Mine died after half an hour at rated power.Bottom line: don't buy it. It should actually be illegal to purchase in the USA.