Hi all, First- I don't know if this is the right forum to post this, if the mods deem it needs to be moved, please do! I'm looking to purchase a new monitor for my 5,1 MP, as my old 30 inch Apple Cinema display is starting to get really long in the tooth. Currently running OS X Sierra, and have an ASUS GeForce GTX 780 card inside (max resolution 4K, 1 HDMI, 1 Display Port, and 2 x DVI). I was taking a look at the apple store with the brand new LG 4K displays, but with the fact they need a USB-C connection and my old MP 5,1 not being capable of USB-C/Thunderbolt, was thinking it would not be a good fit. Am I right in my thinking there? What 4K displays are others using? TL; DR: Can I use new LG 4K displays on apple store with my old MP 5,1; if not, what 4K displays are others using? Thanks!