This is probably the best quality monitor available at this price range.
Initially I got shipped the AU16FHD (which is the USB powered variant). It promptly started showing signs of malfunction in less than a day. My replacement order shipped A16FHD as mentioned in the product page.
I feel the A16FHD is actually better than the newer AU16FHD for a couple of reasons. So far haven't come across any issues with my replacement unit.
The key differences between A16 and AU16 are: 1) Power - AU16 doesn't come with a charger of any form and I don't think they tested it well enough. I think it is more prone to malfunction as a result or I just had a faulty unit. A16 comes with its own power supply. 2) Screen - A16 is more glossy than the AU16 but it's standard brightness at 50% is far more brighter than AU16. Not sure if that's generally the case or if it was a problem with the unit initially shipped to me since the first unit had some backlighting issue. The colours looked a little better on AU16 but it could just be placebo. Nothing a little adjustment in your graphics driver panel can't rectify. Viewing angles on the A16 are not as good as the AU16.