External Graphics Development Kit

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External Graphics Development Kit
Release Notes v1.0
The External Graphics Development Kit includes everything you need to start
optimizing advanced VR and 3D apps for external graphics processors with
macOS High Sierra. It includes:
• Sonnet external GPU chassis with Thunderbolt 3 and 350W power supply
• AMD Radeon RX 580 8GB graphics card
• Belkin USB-C to 4-port USB-A hub
• Promo code for $100 towards the purchase of HTC Vive VR headset *
* Limited availability. Distribution is on a first-come, first-served basis.
Supported Configurations
The External Graphics Development Kit is designed for testing high-performance
Metal and VR applications on Mac computers running macOS High Sierra beta. It
can be connected to any Thunderbolt 3 enabled Mac with the included cable, such
as MacBook Pro with Thunderbolt 3 and iMac with Thunderbolt 3. The kit may
work with Thunderbolt 2-enabled Mac computers via a Thunderbolt 2 to
Thunderbolt 3 adapter, but this is an unsupported configuration. Boot Camp is not
supported by the External Graphics Development Kit.
The External Graphics Development Kit supports the AMD Radeon RX 580 8GB
graphics card that is supplied with the kit. Other graphics cards are unsupported
in the External Graphics Development Kit. The Sonnet external GPU chassis is
designed to work with graphics cards up to 250W with a single 8-pin power
connector.
In order to charge your MacBook Pro while using the External Graphics
Development Kit, the kit supports 60W USB-PD charging. It does not support
charging at 87W, so 15-inch MacBook Pro computers may not charge at full speed
in all situations. Please use the included Thunderbolt 3 cable with the External
Graphics Development Kit, or another Thunderbolt 3 cable capable of 40Gbps.
Thunderbolt 2 cables are not supported.
June 5, 2017
The External Graphics Development Kit is designed to support one VR headset
and/or one external monitor. The VR headset supported by the kit is the HTC Vive.
External monitors with HDMI or DisplayPort are supported. Thunderbolt or USB-C
displays are not supported at this time.
macOS High Sierra Developer Beta
When using the External Graphics Development Kit with macOS 10.13 beta
(17A264c), the following additional restrictions apply:
• Mirroring to a display attached the the External Graphics Developer Kit is not
yet supported; please use extended display mode.
• “Closed-Clamshell” mode is not yet supported.
• HDMI audio is not yet supported on the External Graphics Development Kit
HDMI ports
• AutoLogin will not work if the External Graphics Development Kit is attached at
the time the system is booted / restarted.
• Hot-plug and un-plug of the External Graphics Development Kit require
returning to the Login screen.
• The External Graphics Development Kit does not accelerate the internal display
on iMac or MacBook Pro.
• The External Graphics Development Kit prevents the Mac from entering sleep
mode. Display sleep is still available.
Setup Instructions
The External Graphics Development Kit requires some assembly. Inside the box
you’ll find a Quick Start Guide that walks you through the steps to install the
Radeon RX 580 graphics card into the Sonnet external GPU chassis.
The included Belkin USB-C to 4-port USB-A hub has been tested with VR
headsets. It is designed to plug directly into a Thunderbolt 3 (USB-C) port on your
Mac computer.
Plug your VR headset directly into the HDMI port on back of external Development
Graphics Kit
In order to use the External Graphics Development Kit, you’ll need the latest beta
version of macOS High Sierra installed.
June 5, 2017
In order to use a HTC Vive VR headset, you’ll need to download the latest beta of
SteamVR for the Mac.
If you need to ship the External Graphics Development Kit, you must remove the
GPU card from the enclosure first, as the original packing materials are not
designed to protect the enclosure with a card installed.
Getting Support
If you encounter an issue with your External Graphics Development Kit, please use
http://bugreport.apple.com to report the issue to Apple.
You can ask questions and discuss issues with other developers using the External
Graphics Development Kit on the Developer Forums at
https://forums.developer.apple.com/
For issues related to the hardware in the External Graphics Development Kit,
please contact Sonnet Technologies (http://www.sonnettech.com).
June 5, 2017
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