On: Why that Thunderbolt add-in card doesn't work prop...

[user5994461]

My advice is to not use docks. They cause too much troubles. It's game over as soon as you try to plug multiple displays and/or 4k displays.

Connect each display with a dedicated cable, thunderbolt to HDMI. Works better.

The only issue then is with Macbooks only having 1 or 2 ports, not much you can plug. Use a bluetooth mouse/keyboard to save ports.