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eGFX Breakaway Box
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Driver (0)
Firmware (0)
Manual (4)
IDDownload TitleDownload LinkPost Date
910 eGFX Breakaway Box Developer Edition Quick Start GuideJun-30-17
912 eGFX Breakaway Box User's Guide [English]Aug-04-17
918 eGFX Windows 10 Installation Guide Aug-08-2017
969 eGFX macOS 10.13.2 Installation Guide - AMD Dec-07-2017
FAQ (10)
IDArticle TitlePost Date
914 Does the Breakaway Box 550 support the AMD Radeon Vega 64 or WX9100? Dec-15-17
915 The GPU-350W-TB3 and GPU-350W-TB3Z both have 350W power supplies, but only GPU-350W-TB3Z supports high end cards such as NVIDIA Titan Xp. Why? Aug-18-17
917 How will using Macs of different Thunderbolt generations affect gaming performance with external graphics? Aug-03-17
925 My eGFX Breakaway Box won't turn on. Aug-26-17
926 I have a Windows computer with an internal discrete NVIDIA dGPU and the external NViDIA eGPU is not recogized. Dec-03-17
930 What kind of performance can I expect from the NVIDIA Titan Xp (Pascal) with the eGFX Breakaway Box? Nov-06-17
931 Can I use a Sonnet eGFX Breakaway Box with Boot Camp? Dec-05-17
Neither Apple, nor Sonnet, nor NVIDIA, nor AMD currently supports eGPUs with Boot Camp. Having said that, here's what we know...

Only these Thunderbolt Macs support 64-bit Windows 10 under Boot Camp:
MacBook Pro (2012 and later)
MacBook Air (2012 and later)
iMac (2012 and later)
Mac mini (2012 and later)
Mac Pro (Late 2013)

The community has had some success with NVIDIA and AMD GPUs under Boot Camp. Without serious intervention, most iMacs and all Thunderbolt 3 Macs will fail with Error 12. Some Thunderbolt and Thunderbolt 2 Macs will support NVIDIA eGPU cards with no problems and some will fail with Error 12 (not enough resources).

Here are two user forums at, Solving Error 12, and 2017 13" Non Touch Bar MacBook Pro + RX 580@32Gbps-TB3 (Sonnet Breakaway Box) + Win10 that discuss how to solve Error 12 for Thunderbolt 3 MacBook Pros. These solutions are for expert users. Good luck!
938 What power cable do I need for the Avid HDX card? Nov-06-17
970 Under macOS, I can connect one, two, or three displays to the Breakaway Box or Puck, but when I connect the second, third or fourth, respectively, they all go black. Dec-15-17
978 Under macOS, Sonnet's Breakaway Box and Puck can support 4 displays. How can I tile them into one large display? Dec-15-17

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