I've been researching 4K monitors and have found some of the details to be confusing. I recently bought a 2015 13" MBP (which I love), with the idea that I'd eventually get an external 4K monitor. I've been using a 23" Dell 1080p monitor that's developed a problem that's occurring more and more frequently: the upper right third becomes heavily tinted with either cyan or magenta. It happens with different computers and different inputs, so I know it's the monitor. Anyway, my ideal 4K monitor would allow me to do the following: Plug in my new MBP to run at 3840 x 2160 at 60 Hz. I'm thinking of getting a HengeDock, which would always stay connected. Plug in my late 2012 Mac mini to run at 2560 x 1600 at 60 Hz. This would be my media server and would always stay connected. Plug in my HP work laptop PC (dual-core i7 Haswell), when I work from home once a week, to run at whatever resolution a third input would support. 1920 x 1200 via HDMI would be fine. For work, I use Microsoft Office and Adobe CC -- mostly PowerPoint, Word, and InDesign for presentations and desktop publishing. For home, I use Word, Photoshop, on1 Perfect Photo Suite, Illustrator, and WordPress. I'm an enthusiast-level photographer and blogger. I'll eventually do some video editing, but nothing too intense -- just suitable for blogs. I'm not a gamer, nor would I watch movies on this monitor. Basically, I'm looking for a good-quality 4K monitor with accurate color for photo editing. I'm not a pro, so I don't need to pay top dollar for the best there is. For the sake of convenience, I'd like to be able to keep the three input cables mentioned above connected. The Dell 4K monitors have display-port, mini-display-port, and HDMI inputs. If I could connect all three computers and just switch inputs, that would be fine. However, if it's a case of you can use either the display-port or mini-display-port inputs, but not both, that wouldn't be fine. Is what I want to do possible? Has anyone done anything similar? Do you have any recommendations?