I currently run 3 1080p Dell monitors off of my 15" 2018 MacBook Pro at work with this dock. However, I can only run two of the monitors through the dock, the other has to be through the TB3 port on the opposite side of the MacBook. See here for details on the MacBook Pro TB3 Busses. One other gotchya (might be specific to my dock) is that I have to run one of the monitors connected to the dock via DisplayPort and the other daisy-chained via TB3.