Review on StarTech.Com USB 3.0 Or USB-C Dual HDMI Adapter For Windows & MacOS, 2X HDMI Displays (4K30Hz/1080P), Integrated USB-A To C Dongle, 4In Cable (107B-USB-HDMI) by Bill Escobar

I love the extra screens. I am using this dual card in addition to a single card startech that I purchased last year on a usb3 hub to allow for 4 large screens and the laptop screen, which I rarely use. All ports are HDMI in this install. The important thing to do it configure the monitors, in display settings, so that the same monitor is always checked as the "main display" and all monitors are in the same position under all scenarios of activity - no matter how the monitors decide to fire and in what order. I am using a laptop that has a built in HDMI port, so I made this connection my main display for all cases. First, only hook up the main display. In display settings, check the 2 monitor as the main display. Then add one of the startech adapters and configure it as if it is a partial install and make sure all of the monitors are in the same location you would expect and make #2 the main display again. Now unhook it and do the same with the other startech. Then make sure with all of your startechs loaded, the same location for each monitor is there and #2 is the main display. This fixed all my issues. since the monitor may flake out for a second every once in a while or when the usb cable is moved, but since everything is in the same place under all conditions, it comes right back and does not freeze. I also have all the monitors powered into one power strip under the monitors and I cut the power to them when I am done for the day and leave the laptop in full power mode (no sleep) on all the time. You also want to make sure you have the latest driver update and that all of your s