Hi Community 
I have the S6 ‘triple screen’ (it is 2 screens that flip out either side of the laptop screen.
They are a ‘portable’ screen in that they fold up and pack away for travel, and IMPORTANTLY, run off USB-C without separate power.
My Lattitude 7440 laptop runs them both well from the 2x USB-C ports, but, you need 3x USB-C in order to power the laptop!
I have tried the screens on other laptops and docks, and the results are inconsistent, so hoping someone may have direct experience or tips.
Thanks in advance
Links in case they are of interest
Ok, here is link to the product. Two thirds of the way down the screen is a fairly descriptive graphic
New Maxfree S6 15.6" Triple Monitor for Laptop for Sale New Maxfree S6 15.6" Triple Monitor for Laptop for Sale
In the user manual found here https://cdn.shopify.com/s/files/1/0757/0843/2666/files/S6_user_manual_c530360a-5b6b-4229-9749-39ae69129400.pdf?v=1719823932), document page 4 has the nearest we can get to a specification, and document page 12 also has some connection info (method 2).