Meet the eGFX Breakaway Box, a tiny eGPU for ultrabooks

eGFX Breakaway

The external graphic enclosures are designed to provide graphics acceleration to the portable computers, but the common problem with the currently available eGPUs is the size. They sure can improve the graphics performance of your ultrabook, but they all suffer portability problem.

“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.”


GPU-RX560-TB3 Sonnet Radeon RX 560 eGFX Breakaway Puck
GPU-RX570-TB3 Sonnet Radeon RX 570 eGFX Breakaway Puck
Warranty 1-year
Form Factor Portable external GPU system
Video Memory 4 GB GDDR5
  • 3 DisplayPort 1.4, 4K@60Hz
  • 1 HDMI 2.0b, 4K@60Hz
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
Universal 160W, 100-240V AC, 50-60 Hz
Power Adapter
Universal 220W, 100-240V AC, 50-60 Hz
Operating Temperature 0˚C to 35˚C (32˚F to 95˚F)

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

You can choose between two models, One with a Radeon RX 560 GPU (GPU-RX560-TB3) is priced at $449, and the other with a Radeon RX 570 GPU (GPU-RX570-TB3) will cost you $599. You can get the optional VESA mounting bracket for $59.

Stay tuned for the updates.

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When I am not daydreaming about Pirates and Time Lords, I like to write about tech and gaming.