What video card do you have in the BizonBox? Check with it's specs and tell the thread what it supports!
Well, I don't have one yet, but I was planning on getting the Nvidia 1080.
The reason I'm asking is that I asked Bizon support - just to make sure before my purchace. They gave me this reply... "The LG 5K screens only has Thunderbolt input, so there is no way to use it with the BizonBOX."
I see thunderbolt 3 connectors on the back of the Bizon box, and they also claim full support of the new Macbook Pros, so I was a bit surprised about this.
As far as I can tell the egpu will excellerate things on the laptop display which isn't connected directely to the egpu graphics card either, so that doesn't explain the 5K LG display wouldn't benefit from the egpu. It could be connected to another port on the Macbook Pro or the back of the egpu box. If there are graphics cards out there with Thunderbolt 3 connections then the LG 5K display could be connected directly to it. Then wouldn't it work?