Pro Power Graphics
Add a High-performance Video Card to Create Your Own Personal Windows or Mac eGPU Workstation
eGPU Breakaway Box 750eGPU Breakaway Box 750ex
Thunderbolt to eGPU Card Expansion Systems for Windows and Intel Mac Computers
Thunderbolt Computers

Transform Your Thunderbolt Windows or Intel-based Mac Computer Into a Graphics Workstation

Whether you’re editing, rendering, color grading, animating or creating special effects, many of the pro applications you use rely on desktop and workstation graphics (GPU) cards to do the heavy lifting in processing data. Unfortunately, many popular computers are equipped only with integrated graphics or low-power discrete GPUs that bottleneck performance when performing these tasks. Happily, there’s a simple path to greater productivity — add a Sonnet external GPU (eGPU). The eGPU Breakaway™ Box 750 and 750ex Thunderbolt™ to GPU PCIe card expansion systems boost your eGPU-compatible computer’s graphics performance by connecting a high-performance GPU card to your computer via a single cable.
Thunderbolt Certified LogoThunderbolt Certified LogoThunderbolt Certified Logo
Future Proof Icon

Future-proof Upgrade

With each new generation of GPU cards, users can look forward to a step (or leap) forward in performance. Less predictable is how much power they will require to operate — better performance frequently requires increased power. For eGPU users, power consumption can be a concern. Don’t limit your future video graphics card choices — choose a Sonnet eGPU Breakaway Box 750 or 750ex. Equipped with 750W power supplies, these Sonnet chassis easily support the highest power demands of latest GPUs and have plenty of extra power to support GPU cards from generations to come.
750 and 750ex Models Feature 750W Power Supply

Two Models. Your Choice:

Both eGPU Breakaway Box models are Thunderbolt Certified and include a Thunderbolt cable to connect the system to your computer. The 750 offers basic eGPU functionality, while the 750ex provides a handy connection hub for USB devices and Ethernet connectivity.

eGPU Breakaway Box 750 Model

eGPU Breakaway Box 750

  • Includes two 8-pin (6+2 pin) auxiliary power connectors
  • 750W power supply; supports cards requiring up to 375W of continuous power plus an additional 100W peak power
  • Provides 85W of upstream power (useful for charging your notebook)
  • Designed and qualified to support overclocked NVIDIA cards with high peak power requirements
  • See the list of Supported GPU Cards (PDF)
eGPU Breakaway Box 750ex Model

eGPU Breakaway Box 750ex

  • Includes two 8-pin (6+2 pin) auxiliary power connectors
  • 750W power supply; supports cards requiring up to 375W of continuous power plus an additional 100W peak power
  • Provides 85W of upstream power (useful for charging your notebook)
  • Designed and qualified to support overclocked NVIDIA cards with high peak power requirements
  • See the list of Supported GPU Cards (PDF)
  • 750ex Model Includes: Integrated hub with four USB 3.2 Gen 1 Type A ports and one Gigabit Ethernet port

Expansive GPU Card Compatibility

eGPU Cards

No Compromise GPU Card Choice

eGPU Breakaway Box 750 systems are designed specifically to accommodate the most power-hungry double-width GPU cards. They support Thunderbolt-compatible cards(1) with popular GPU chipsets — such as AMD Radeon™ RX series GPUs, and NVIDIA® GeForce® series and TITAN GPUs. Even the latest pro cards — AMD Radeon Pro, NVIDIA Quadro®, and Intel ARC GPUs — are supported! (Note that macOS® supports only AMD GPU cards only with Intel Macs, while Windows® supports AMD, NVIDIA, and Intel ARC cards.) With a GPU card installed, a Breakaway Box functions as a simple plug-in upgrade to significantly accelerate the demanding needs of your video production workflow.

Key Features

Boost Graphics Performance Icon

Boosts Graphics Performance

Connects a high-performance GPU card to your Intel Windows or Mac eGPU compatible computer (see Tech Specs for full compatibility).

Cut Applications In Half Icon

Cuts Application Task Times

Enables GPU acceleration to significantly improve editing, rendering, color grading, animation, and special effects performance.

750W Power Supply Icon

750W Power Supply

Support the power requirements of the latest compatible GPU cards; future-proof design handles higher power requirements of cards to come.

Supports Latest eGPU Cards Icon

Supports Many of the Latest GPU Cards

AMD Radeon RX and Pro WX models; NVIDIA GeForce RTX, TITAN, and Quadro models; and Intel ARC cards

Multi-eGPU Acceleration Icon

Multi-eGPU Acceleration Support

Connect two, three, or four eGPU Breakaway Boxes to slash task times on supported applications.

Supports Non-GPU Cards Icon

Supports Non-GPU PCIe Cards

Supports Thunderbolt-compatible full-length, full-height, single- or double-width cards –perfect for pro audio I/O and DSP cards and pro video I/O and transcoding cards.

Quietest Configurable eGPU System Icon

Quietest Configurable eGPU System Available

Large built-in, variable-speed, temperature-controlled fan quietly and effectively cools whatever card you install.

Choice of Models Icon

Choice of Models

Both models support the same GPU cards, include the same power supply, and provide the same portable computer charging support; the 750ex adds additional connectivity.

750ex Model - Additional Connectivity Icon

750ex Model: Additional Connectivity

Adds four 5Gb/s USB Type A ports to connect peripherals, plus an RJ45 Gigabit Ethernet port for a wired network connectivity.

Single-Port 40Gbps Thunderbolt Interface Icon

Single-Port 40Gbps Thunderbolt Interface

Ensures full 2800 MB/s of PCIe bandwidth is dedicated to the installed card. 

Thunderbolt Certified Icon

Thunderbolt Certified

Certified for Thunderbolt for use with eGPU compatible Mac® computers.

Mac & Windows Icon

Intel® Mac & Windows Compatible

Compatible with eGPU compatible Intel Windows and Mac computers with Thunderbolt 4 and Thunderbolt 3 ports.

Free Lifetime Tech Support
Performance Comparisons
Application eGPU Performance Examples
Connecting a desktop or workstation GPU card delivers a significant graphics processing boost to the top video editing, visual effects, and modeling applications, cutting rendering times and enhancing VFX and color correction workflows. These performance comparisons illustrate potential advantages with popular eGPU cards and applications.
MacBook Pro with eGPU Breakaway Box
MacBook Pro Application Acceleration
Adobe Premiere Pro
H.264 Export Speed Test (10 minute timeline of 4K footage with multiple effects)
Adobe Premiere H.24 Export Performance Graph
Shorter bars better
DaVinci Resolve
1080p Candle Benchmark (24 fps timeline with 36 blur nodes)
Davinci Resolve 1080p Candle Performance Graph
Longer bars better
Autodesk Maya
Rendering Performance
Autodesk Maya Rendering Performance Graph
Longer bars better
Maxon Cinema 4D
Rendering Performance
Maxon Cinema 4D Rendering Performance Graph
Longer bars better
iMac Pro with eGPU Breakaway Box
iMac Pro Application Acceleration
DaVinci Resolve 15
1080p Candle Benchmark (24 fps timeline with 36 blur nodes)
Davinci Resolve 15 1080p Candle Performance Graph
Longer bars better
DaVinci Resolve 15
MP4 Render Speed Test (10 minute timeline of 8K footage with 4 nodes)
Davinci Resolve 15 MP4 Render Performance Graph
Shorter bars better
iMac Pro (10-core) Application Acceleration
Maxon Cinema 4D
Rendering Speed Test (Bamboo demo scene, 200 Ray Trace iterations)
Maxon Cinema 4K Rendering Performance Graph
Shorter bars better
Radeon Pro WX 9100 and Radeon RX 580 Video Cards
Radeon Pro WX 9100 vs Radeon RX 580
Installed in an eGPU Breakaway Box 750, the AMD Radeon Pro WX 9100 offers outstanding performance. The graphs below compare the WX 9100 against the RX 580 (as featured in the custom-designed, all-in-one Blackmagic eGPU). While delivering good performance, the RX580 is greatly outclassed by the WX 9100 for pro-graphics acceleration.
Radeon Pro WX 9100 Performance Graph
Longer bars better
Thunderbolt 4 Computers

Compatible with Thunderbolt 4 Windows Computers

The eGPU Breakaway Box 750 and 750ex are fully compatible with Thunderbolt 4 Windows computers and were purposely designed with a Thunderbolt 3 controller and its four lanes of PCIe (not available in a Thunderbolt 4 peripheral) to achieve maximum performance. Learn more about the performance benefits of Thunderbolt 3 over Thunderbolt 4.

Multi-GPU Support

Four eGPU Breakaway Boxes Icon

4K to 8K Workflows –
Connect Two or More Breakaway Boxes

Many task times on supported applications — such as Adobe® Premiere® Pro, DaVinci Resolve™, and Maxon Cinema 4D™, to name a few — can be cut significantly with one eGPU Breakaway Box connected. But, for computers with multiple Thunderbolt ports, times can be slashed when two, three, or four Breakaway Boxes are employed. Connecting one or more eGPUs can multiply your computer’s graphics processing power, enabling it to handle 4K, 5K, 6K, and 8K workflows more efficiently. Plus, a computer’s onboard discrete GPU also contributes to the aggregate performance.

eGPU Breakaway Box 750ex Front & Rear View

More Ports, Additional Functionality: eGPU Breakaway Box 750ex

Is your computer short on ports for basic connectivity? Step up to the eGPU Breakaway Box 750ex to add four 5Gb/s USB 3.2 Gen 1 Type A ports to connect peripherals, plus an RJ45 Gigabit Ethernet port for a wired network connection. The 750ex features a dual Thunderbolt controller design, enabling it to support both peripherals and GPU card through the single Thunderbolt connection to your computer.
eGPU Breakaway Box 750ex Setup
Thunderbolt Logo

Designed for GPU Cards, Also Supports Other Demanding PCIe Cards

The Breakaway Box’s single x16 PCIe 3.0 slot accommodates full-length, double-width cards, and its 750W power supply supports trouble-free operation. Its single-port 40Gbps Thunderbolt interface ensures the full 2800 MB/s of PCIe bandwidth is dedicated to the installed card.
eGPU Breakaway Box PCIe SloteGPU Breakaway Box with GPU Card Installed

Supports Latest eGPU Cards

designed to house and power the latest power-hungry video cards

eGPU  Breakaway Box with GPU Card Illustration
Fan Icon

Coolest & Quietest Add-your-own-card eGPU System Available

With its large variable-speed temperature-controlled fan that quietly and effectively cools the installed card, the eGPU Breakaway Box can be comfortably used in noise-sensitive working environments.

eGPU Breakaway Box Fan

Graphic-Intensive Gaming Support

There’s no need for you to carry a heavy, loud, and hot-running gaming laptop to have a great gaming experience — just plug in a Breakaway Box and add the GPU power you want when you need it! A Breakaway Box is ideal for empowering graphic-intensive gaming on an Intel® processor-based MacBook Air® or 13-inch MacBook Pro®, Ultrabook™ and other thin/light notebook computers that otherwise would deliver a poor gaming experience. Accelerated graphics can either be displayed on one, two, or more external monitors, or on your notebook’s own display panel.(4) Best of all, you can upgrade the GPU card in the Box to keep up with the latest in GPU technology (unlike with gaming laptops).

Notebook Illustration

Add GPU Power to Mac and Windows Notebooks with Intel Integrated Graphics

Multi-monitor Gaming Setup Illustration

Experience Amazing Gaming on Your Notebook's Screen or an Expansive Multi-monitor Set-up

eGPU Card Illustration

Upgradeable – Plug in a New Card to Stay Current with GPU Technology

Learn why Sonnet's Pro Products Rely on Thunderbolt 3 Technology for Maximum Performance
See Tech Specs for footnotes.
Product specifications and information subject to change without notice. Computer hardware and accessories featured in photos that are not included with product are shown for illustration purposes; items sold separately.

eGPU Breakaway Box 750/750ex