VisionTek Mini eGFX Review - Mobility meets Utility
@Mat_hd has recently posted a video update (eGPU mention at 3:07 mark) that he’s back. He will be doing some eGPU testing with the VisionTek mini eGFX RX 570. Hopefully this will improve the modified Radeon drivers in Boot Camp. Please donate to his website if you have found the drivers useful for your setup.
@Bryan lee Yes it works with the Apple Thunderbolt 3/USB-C to Thunderbolt adapter. You would need a software unlock (Purge-wrangler or automate-eGPU EFI) in order to use eGPU in macOS. The expansion port may only work in macOS.