FAQ
1. What is the difference between a Sonnet Breakaway Box 350 and the Sonnet 350W enclosure included with the Apple Dev kit?
The Sonnet Breakaway in Apple Dev Kit has a different Thunderbolt firmware (25.1) than the one in regular 350W unit (25.2). It has 60W PD (as opposed to 15W) and only one 8-pin PCIe power cable (the 6-pin cable is in there but shrink-wrapped).
2. What is a safe third-party video card to get to maximize compatibility with High Sierra when it's released?
I'm kind of thinking the safe approach is to get a third party eGPU with an RX580 and run it under Sierra, with the thought that I know it will run when eGPU support goes official in roughly one year. Would that make any sense?
The safe bet is a Sapphire Pulse RX 580 8GB:
Exciting times guys!
Just announced at WWDC! looks like sonnet will be supplying the first officially support eGPU along with an RX580!
Woohoo it's comming!!!! 😊
MacBook Pro 15" 2017, AMD RP560
Devil Box + MSI GTX 1080Ti Gaming X
Bricked thanks to rEFInd:
MacBook Pro 15" Late 2013, GT 750M
2017 15" MacBook Pro (RP560) [7th,4C,H] + GTX 1080 Ti @ 32Gbps-TB3 (PowerColor Devil Box) + macOS 10.13.3 & Win10 [build link]
Crap, you beat me to it.
Looks like Sonnet enclosure and it's interesting that their kit is AMD-based.
MBP 15" - Mid 2017
Akitio Node
MSI GeForce GTX1060 6GB
iMacs are AMD based so makes sense. They didn't renew their nvidia license last year.
2019 15" MBP i9 32GB - Catalina 10.15.4
Asus XG Station Pro e-GPU
Gigabyte 5700 XT
Caldigit TS3+ Dock
ll
Exciting times guys!
Just announced at WWDC! looks like sonnet will be supplying the first officially support eGPU along with an RX580!
This is REALLY great news!!!!!
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
.
automate-eGPU EFI ● apple_set_os.efi
Mid 2015 15-inch MacBook Pro eGPU Master Thread
2018 13" MacBook Pro [8th,4C,U] + Radeon VII @ 32Gbps-TB3 (ASUS XG Station Pro) + Win10 1809 [build link]
AMD rocks 
Apple developer kits consists of Sonnet Breakaway Box and AMD RX580
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
.But currently the Sonnet Breakaway Box doesnt have USB hub right?