Apple sells out of External Graphics Development Kit allotment, Sonnet offers eGFX Box + GPU at reduced cost

Apple launched its External Graphics Development Kit during WWDC 2017 as a way to assist developers with demanding graphics-intensive apps and VR content creation. The unit included the developer edition of Sonnet’s external eGFX GPU chassis, along with Sapphire’s AMD RX 580 8GB graphics card, and Belkin’s USB-C to 4-port USB-A hub.

Apple priced the External Graphics Development Kit at $599, which was reasonable considering that the Sapphire Pulse RX 580 8GB still goes for around $279, and demanded a higher price during the kit’s launch. The External Graphics Development Kit has been on sale for several months, but now all stock appears to be exhausted.

As a part of its Cyber Week Sale, Sonnet is offering the eGFX Breakaway Box – Developer Edition — the same unit included in Apple’s kit, sans Belkin USB hub, for $499. That’s a $100 price difference from what Apple was charging, and the developer edition of the eGFX units are available to all users, not just developers.

Author Ad Placeholder
Will only appear on redesign env.

Under macOS 10.13.1, all Thunderbolt 3 Macs, which include the latest MacBook Pro and iMac models, are compatible with the eGFX Breakaway (Developer Edition). That includes the following models:

  • iMac 2017 models 18,1-18,3
  • MacBook Pro 2016 models 13,1-13,3
  • MacBook Pro 2017 models 14,1-14,3

With this deal, you’re essentially able to score a solid eGPU box that works with macOS for a little over $200. Granted, eGPU support in macOS is still not fully baked; we can expect further enhancements in the spring of 2018.


  • Includes Sapphire PULSE Radeon® RX 580 8GB Graphics card
  • Includes 0.5-meter Thunderbolt 3 cable
  • Thunderbolt 3 Interface (one Thunderbolt 3 [USB-C] port)
  • Provides laptop charging up to 60W
  • Quiet, Temperature-Controlled Fan
  • 1-Year Warranty

Sonnet is also selling the consumer version of its eGFX Breakaway Box 350 for $224. That unit features one 8-pin (6+2 pin) plus one 6-pin power connector, but only provides 15W of power to a MacBook Pro.

In addition, the Irvine, CA-based company recently launched its eGFX Breakaway Box 550, which is compatible with a wider range of high-end GPUs that require additional power. The higher-powered unit also supports 87W of power delivery, which is enough to charge a 15-inch MacBook Pro at full speed.

Image credit: Josh Farkas

Subscribe to 9to5Mac on YouTube for more Apple news:

FTC: We use income earning auto affiliate links. More.

You’re reading 9to5Mac — experts who break news about Apple and its surrounding ecosystem, day after day. Be sure to check out our homepage for all the latest news, and follow 9to5Mac on Twitter, Facebook, and LinkedIn to stay in the loop. Don’t know where to start? Check out our exclusive stories, reviews, how-tos, and subscribe to our YouTube channel



Avatar for Jeff Benjamin Jeff Benjamin

Jeff produces videos, walkthroughs, how-tos, written tutorials and reviews. He takes pride in being able to explain things in a simple, clear and concise manner.