System specs

Laptop: MacBook Pro (15-inch, 2017)

CPU: Intel Core i7-7700HQ CPU @ 2.80GHz

iGPU: Intel HD Graphics 630

dGPU: Radeon Pro 555

Operating system: macOS 10.13.4 Beta, Bootcamp Windows 10

eGPU hardware

Enclosure: Mantiz MZ-02 (VENUS)

Video card: MSI GeForce GTX 1080 Ti Gaming X Trio

Fan: Noctua NF-A8 ULN 80mm

Installation steps

Unfortunately I made a few photos.

Enclosure:

Replace standard 80mm fan with silent Noctua NF-A8 ULN 

It was very difficult because it was necessary to disassemble the enclosure. Fortunately the new fan has rubber connectors.

Insert the video card.

MSI GeForce GTX 1080 Ti Gaming X Trio is very large video card: 325 x 140 x 48 mm:

All specs there: 

https://www.msi.com/Graphics-card/GeForce-GTX-1080-Ti-GAMING-X-TRIO/Specification

So it was very hard to insert the card to the enclosure. I removed the back cover with the PSU, then I connected PSU chords with the card and then simultaneously I inserted the card and the PSU with back cover to the enclosure.

System setup

macOS 10.13 

I had macOS 10.13.3 and this guide worked well: 

https://egpu.io/forums/mac-setup/wip-nvidia-egpu-support-for-high-sierra/

After updating macOS to 10.13.4 Beta Web Driver was disabled. And these steps helped me: 

1. Download the webdriver.sh file from here:   https://github.com/vulgo/webdriver.sh
2. And run:

sudo ./webdriver.sh -cu http://us.download.nvidia.com/Mac/Quadro_Certified/387.10.10.10.25.156/WebDriver-387.10.10.10.25.156.pkg

sudo ./webdriver.sh -m

Windows 10

For Windows I used this guide:

https://egpu.io/forums/builds/mid-2017-macbook-pro-rp560-msi-gtx1080-gaming-x32gbps-tb3-mantiz-venus-macos-win10-wip/

It worked well. 

Benchmarks

Unigine Heaven Benchmark 4.0 on macOS 10.13.4

FPS: 116.0

Score: 2922

Min FPS: 35.0

Max FPS: 219.0

Also I played Overwatch on Win10 with ultra settings and 4k. And it was about 130fps. 

The desktop