Mantiz Venus Review: All-in-one Thunderbolt 3 eGPU Docking Station
Given it works and charges on a XPS 13 9360 I would be very surprised indeed if it did not work.
XPS 13 9360 + Acer Graphics Dock
Yes it can charge the Razer Blade Stealth. In fact, the production version of the Mantiz Venus provides 87W of charge. This is sufficient for most Thunderbolt 3 laptops including the Late 2016 15" MacBook Pro.
Works this Mantiz eGPU also well with a Nvidia GTX 1080 desktop graphics card?
Is a external screen needed or is the notebook screen alone fine for using the eGPU power?
It would work well with a GTX 1080 GPU. We just tested this Mantiz Venus enclosure with a GTX 1080 Ti. You can use the eGPU to accelerate the internal screen. Read our eGPU setup guide for full instructions.