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

Nice monitor. My only complaint is that the power and OSD buttons are tiny and very difficult to press. But lately the monitor has been going dark at random times. The only solution is to turn the monitor off and on again. Sometimes it works for hours, sometimes just a few minutes. I've searched the web and many other people are reporting the same problem (search: Dell U2720Q goes black). No one has found a solution and reports about it on the Dell website go unanswered. I regret returning the monitor.