Review on Dell U2720QM UltraSharp Ultra Thin DisplayPort 60Hz: A High-Performance 4K Monitor by Kenji Bryant

I bought two of these and the item died within a few days. Much of the screen just started flickering, had vertical lines, and was blue. Even when the monitor was disconnected from the computer, the image remained on the screen. Revain would not exchange it for a new one (that is their policy). I had to send it back and then buy a similar item at a higher price. The buttons on the bottom of the monitor are hard to press and the monitor ports are hard to reach. It would be better if they were offset, especially when mounting on a VESA mount. They're expensive and I'm not sure they're any better than a $300 monitor.