I am using an EV3A displayport hub to connect 3 screens in one location and 2 screens in another location (different dock). The only problem that I have had with the system is that in the second location I was having issues with reboot in sleep and loss of the displayport screens. I found that the Dell Displayport cables included with the monitors appeared to be the problem. When I replaced the cables (after swapping durn near everything else), the issues stopped. The 3 monitor setup is not having this problem, but I plan on proactively replacing those cables as well. Using this system I have pretty much dumped my desktop (now using it to test Win10), and use the docked SP3 with a dasKeyboard, 3 screens and a trackball. I have used Microstation CAD on it, without issue. In the other location I have a Filco keyboard, mouse and 2 screens+the SP3 screen.