Background: I purchased an LG Ultrafine 5k monitor per Tim Cook's recommendation. This only has a Thunderbolt-3 input. Awesome monitor, but very limited when it comes to what you can drive it with.
Goal: I'd like to use it with a non usb-c video out source. I.e., I'd like to get an eGPU and use a video card that has Displayport output (or HDMI) with that LG Ultrafine. I do understand that the Blackmagic eGPU has Thunderbolt output, but I want a better price to performance ratio than that offers.
Question: Is there a displayport (or HDMI) to USB-C adapter on the market? Searching for this is not easy because everything points to the opposite (USB-C to Displayport, etc.). Alternatively, is there a MacOS compatible video card with Thunderbolt 3 or USB-C out?
I'm ok with not getting full 5k video.
My apologies in advance if this has already been asked. I did search for this question but everything that comes up is about usb-c to displayport (or hdmi, etc.).