Sonnet Announces Two High-Power Thunderbolt™ 3 to eGPU Card Expansion Systems

IRVINE, Calif. — Dec. 15, 2020

New Add-Your-Own GPU Card Systems Feature 750-Watt Power Supplies

What’s New:
Sonnet Technologies today announced the launch of the eGPU Breakaway Box 750™ and eGPU Breakaway Box 750ex™, the newest and most powerful members of the company’s award-winning family of Thunderbolt™ 3 to PCIe® graphics processing (GPU) card expansion systems. Both systems support full-length, full-height, double-width GPU cards, and utilize large temperature-controlled fans that provide efficient and ultra-quiet cooling for the installed card. Sonnet designed these new expansion systems with the goal of offering users a future-proof purchase, equipping them with 750-watt power supplies capable of supporting the most power-hungry GPU cards available. The systems are nearly identical, except the eGPU Breakaway Box 750ex adds a built-in connection hub for USB devices and Ethernet connectivity.

What They Do:
eGPU expansion systems boost a computer’s graphics performance by connecting a powerful desktop or workstation GPU card to it via a Thunderbolt 3 connection, bypassing the computer’s onboard GPU to deliver graphics performance not otherwise possible. Sonnet’s eGPU Breakaway Box 750 and 750ex systems are designed for professionals who need to run graphics-intensive applications on their eGPU-compatible notebook, all-in-one, or small-form-factor computers, with the products’ designs focused on cool, quiet, and reliable operation without unnecessary bells and whistles.

Why They’re Important:
The most popular applications used by professionals rely on GPUs to do the heavy lifting in processing data, but many computers favored by those same users are only equipped with an integrated or a low-power discrete GPU unsuitable for many of those tasks. With support for most popular AMD- and NVIDIA-based GPU cards, an eGPU Breakaway Box significantly boosts a computer’s graphics performance to remove the roadblocks to pro video application use. For users whose computers are short on ports, the eGPU Breakaway Box 750ex offers four additional USB Type A ports (handy for connecting a mouse and keyboard) and one Gigabit Ethernet port for wired networking.

How They’re Unique:
Both eGPU Breakaway Box models are equipped with the highest-wattage power supply available in an eGPU system today. In terms of GPU card support, the higher-wattage power supply provides more than enough power for the cards available today, and enough to support even more power-hungry cards expected in the future. The eGPU Breakaway Box 750ex incorporates a second Thunderbolt 3 controller dedicated to supporting its additional USB and Gigabit Ethernet ports, and provides a more seamless user experience than was possible with some earlier eGPU systems with added ports (and that were prone to operation issues).

When You Can Get Them:
The eGPU Breakaway Box 750 (part number GPU-750W-TB3) is available now from Sonnet at the suggested retail price of $299.99.

The eGPU Breakaway Box 750ex (part number GPU-750WEX-TB3) will be available from Sonnet in late December 2020 to early January 2021 at a suggested retail price of $349.99.

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About Sonnet Technologies
Sonnet Technologies Inc. is a leading provider of Thunderbolt™ 3 to PCIe® card expansion systems; external graphics (eGPU) solutions for pro users and gamers; pro media readers; docks and adapters; and network, storage, and other interface cards for pro users in the audio, video, and broadcast industries. Sonnet’s Thunderbolt expansion products enable the use of pro audio I/O and DSP cards, pro video capture and transcoding cards, GPU cards, network and storage interface cards, and other high-performance PCIe cards with Thunderbolt technology-enabled computers. For more than 30 years, Sonnet has pioneered and brought to market innovative and award-winning products that enhance the performance and connectivity of Mac®, Windows®, and other industry-standard computers. More information is available at

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Image Caption: Sonnet eGPU Breakaway™ Box 750 Thunderbolt™ 3 to PCIe® GPU Card Expansion System

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