I've moved this from my previous post because I was afraid the title wouldn't get any hits (it started as a question) Got the display, connected it and my 2013 MP recognized it right away. Native 4K but at 50Hz. That said it's probably going back for a few reasons: 1. It suffers from what seems to be a common LG screen problem: Left side has a different white point and/or light output than the right. It's not as terrible as the iMac I returned but it's an obvious color shift problem which will make editing photos difficult. Very noticeable on white or gray areas. The photo doesn't show it well but there's also a yellow tint on the left and blue on the right. 2. Maybe it's just this display but HiDPI isn't working correctly with Photoshop. From what I've read only the UI should scale, the images should be a native resolution. When running any scaled size the images I'm working on scale as well. For example a 5k image doesn't fill the screen at 150% scaling. At native its bigger than the screen. Scaled: Native: 3. 50hz is noticeable. Again nothing like 30z but videos and moving around quickly on the screen it's noticeable.