Macos High Sierra 10.13.4 Build: 17e199

: Supporting the "clamshell" mode (using an eGPU while the MacBook display is closed) and hot-plugging, which allowed for immediate activation without logging out.

Breakthrough in Professional Performance: Official eGPU Support macOS High Sierra 10.13.4 Build 17E199

The most significant feature of Build 17E199 was the introduction of . This allowed users with Thunderbolt 3-equipped Macs to significantly boost their graphical power for: : Supporting the "clamshell" mode (using an eGPU