Sonnet Radeon RX 570 eGFX Breakaway Puck

Portable eGPU for Computers with Thunderbolt 3 Ports

Sonnet's Breakaway Puck offers portable eGPU for Thunderbolt 3 enabled computers in an incredibly small and lightweight unit.

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£589.00 £490.83
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Extremely Portable, High-performance External Graphics Acceleration

External GPU to Go
Gaming or graphics processing on a thin/light notebook? Even when equipped with a beautiful display and a high-performance CPU, you probably wouldn’t have thought of loading games onto one (unless you like playing at low frame rates, resolutions, and detail settings).

With the development of Thunderbolt 3 connected external GPUs, such as Sonnet’s eGFX Breakaway Box, desktop boxes that support a range of desktop GPU cards that can boost your computer’s graphics performance are now available, making Ultrabook gaming and video editing a reality. But, they are, at best, transportable. What if you could instantly boost your computer’s graphics performance anytime and anywhere you need it, without being anchored to a desk? Here’s an idea—Pack a Puck!

Sonnet’s eGFX Breakaway Puck is an extremely-portable, high-performance, all-in-one external GPU for Thunderbolt 3 computers that provides accelerated graphics and multi-display connectivity. With a Puck connected to your computer, you can dramatically accelerate popular graphics-intensive games and pro applications anywhere.

Highly Portable
The eGFX Breakaway Puck conveniently packs with your notebook in a backpack or computer bag when you need GPU acceleration while on the road. Connected to your computer with a single 0.5-meter Thunderbolt 3 (40Gbps) cable (included), the Puck provides 45W of Power Delivery, which means it will power and charge your computer while connected, even when not in use, allowing you to leave your computer’s power brick behind. Whether you’re looking for a ultra-convenient way to game with an ultrabook at a LAN party, or you’re a pro who needs an extra computational power boost for on-location rendering, color grading and video editing, the Puck injects extra GPU power to go.

Measuring a compact 6 inches wide by 5.1 inches deep by 2 inches tall, the eGFX Breakaway Puck has a minimal footprint on the desktop, and is the right size to compliment your thin/light notebook. 

Zero Desktop Footprint (with Optional VESA Mounting Bracket)
Using the optional VESA Mounting Bracket Kit, you can free up desk space and mount the eGFX Breakaway Puck to the back of a monitor with open VESA mounting holes (VESA 75 and VESA 100 hole patterns supported). The bracket is secured with provided hardware, and provides simple cable management. To further cut down on cable clutter, Sonnet includes a 0.5-meter DisplayPort cable in the kit to connect between the Puck and your display. The Mounting Bracket Kit also includes parts that enable it to be attached to virtually any multi-monitor stand on any shaped stand upright or monitor arm.

Multi-Display Graphics Dock for Ultrabooks
When you choose an Ultrabook, you don’t get all the same capabilities as a desktop computer can offer, such as connecting multiple displays. But, of course, you wouldn’t want to carry a desktop computer in your backpack. Why choose between the ultimate in notebook portability and multi-display support? With its three DisplayPort ports and one HDMI port, the eGFX Breakaway Puck leverages AMD’s Eyefinity multi-display technology to support up to four 4K displays with its single Radeon GPU! With the Puck connected, there’s no need to compromise between the super-light notebook you want and the number of displays you need on your desktop.

40Gbps Thunderbolt 3 Performance
Thunderbolt 3 is a leap forward in every way. Whether you’re editing 4K video at high frame rates or blasting aliens out of the sky, you can now transform your notebook into a true desktop experience. With up to 2750 MB/s available bandwidth, the Breakaway Box exploits its 40Gbps Thunderbolt 3 interface to offer the best-possible eGPU experience, or handle the most demanding, highest performance PCIe cards.

Pick a Puck:
Sonnet offers two eGFX Breakaway Puck models from which to choose, enabling you to select one best suited to your needs. Both deliver powerful GPU acceleration, packing big performance into a conveniently small package. Both support AMD XConnect™ technology, enabling easy connection and disconnection of the Puck without having to power cycle your computer. Both Pucks enable you to enjoy smooth gameplay at 60+ FPS with many of the most popular games, or boost the performance of professional graphics applications while using a notebook computer on-location. 

eGFX Breakaway Puck Radeon RX 560

  • Offers the best value and portability for gaming
  • Use in a dorm room, bedroom, office, coffee shop, or at a LAN party
  • Ideal for use as a graphics dock for multi-display support


eGFX Breakaway Puck Radeon RX 570

  • Most powerful Breakaway Puck, delivering smooth gaming at even higher resolution and frame rates
  • Best for portable GPU acceleration for pro video applications such as DaVinci Resolve and Adobe Premier

Connects a High Performance External GPU (built in) to Your Computer with Thunderbolt 3 Ports
Connects an AMD Radeon 570 or 560 GPU to your eGFX-compatible computer with Thunderbolt 3 ports, to substantially uplift graphics performance

Small and Highly Portable
Measuring a compact 6 inches wide by 5.1 inches deep by 2 inches tall, the Puck has a minimal footprint on the desktop, fits easily into a computer bag or backpack

Provides 45W of Power Delivery
The Puck powers and charges your computer while connected, even when not in use, allowing you to leave your computer’s power brick behind

VESA Mounting Bracket Kit Available
Optional mounting kit enables a zero desktop footprint installation, securing the Puck to the back of a monitor or multi-display stand and connecting it with an included DP cable

Multi-Display Graphics Dock for Ultrabooks
With its three DisplayPort ports and one HDMI port, the Puck can support up to four 4K displays

40Gbps Thunderbolt 3 Interface with One Thunderbolt 3 (USB-C) Port
Ensures full 2750 MB/s of PCIe bandwidth is dedicated to the GPU

Choice of Models
Radeon RX 560 model offers the best value and portability for gaming, and ideal for use as a graphics dock for multi-display support; while the more powerful Radeon RX 570 model delivers even smoother gaming at even higher resolution and frame rates and is the model best-suited for pro video application support

More Information


  • Warranty: 1-year
  • Form Factor: Portable external GPU system
  • Video Memory: 4 GB GDDR5




External Connectors

  • One Thunderbolt 3 (USB-C)
  • 4-pin power DIN
  • Three DisplayPort
  • One HDMI


Supported Technologies

  • AMD Eyefinity™ Technology
  • AMD FreeSync™ Technology
  • HDCP 2.2
  • HDR (High Dynamic Range)
  • DirectX® 12
  • Intelligent Fan Control
  • OpenCL 2.0
  • OpenGL 4.5


  • Power Delivery: Provides laptop charging up to 45W
  • Power Adapter (GPU-RX560-TB3): Universal 160W, 100-240V AC, 50-60 Hz
  • Power Adapter (GPU-RX570-TB3): Universal 220W, 100-240V AC, 50-60 Hz
  • Operating Temperature: 0ËšC to 35ËšC (32ËšF to 95ËšF)
  • Dimensions (WxDxH): 6 x 5.12 x 2 in. (15.24 x 13 x 5.1 cm)
  • Package Weight (Part No. GPU-RX560-TB3): 4.15 lbs (1.88 kg)
  • Package Weight (Part No. GPU-RX570-TB3): 5.25 lbs (2.38 kg)
  • RoHS Compliant: Yes


Windows Compatibility

  • eGFX-enabled Windows PC with a Thunderbolt 3 port
  • Windows 10 (64-bit Edition Version 1703 or greater)


Mac Compatibility

  • macOS High Sierra (10.13) currently offers only beta support for connection of external GPUs, and not all Thunderbolt Macs are currently supported with AMD beta GPU Thunderbolt drivers. For information regarding enabling the use of the eGFX Breakaway Puck with macOS, click here.

  • eGFX Breakaway Box Puck
  • Power adapter
  • 0.5-meter Thunderbolt 3 (40Gbps) cable
  • Documentation