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Allegro Max USB-C 20Gbps 1-Port PCIe Card

For Release: June 20, 2024

For more information, please contact:

Martin Muggee
Marketing Communications Manager


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  IRVINE, Calif. — June 20, 2024

Sonnet Announces High-Performance USB-C® 20Gbps PCIe® Card With Support for 2,000 MB/s Data Transfers

Allegro Max USB-C 20Gbps 1-Port PCIe Card Adds USB 3.2 Gen 2x2 Support to Mac, Windows, and Linux Computers With an Available x4 PCIe Card Slot

What’s New:

Sonnet Technologies today announced the Allegro™ Max USB-C® 20Gbps 1-Port PCIe® Card, a new, low-cost addition to Sonnet’s broad range of USB adapter cards. The Allegro Max card adds a single USB-C 20Gbps port to computers with PCIe card slots, enabling superfast data transfers with the latest USB 3.2 Gen 2x2 portable SSDs.

What It Does:
The Allegro Max USB-C 20Gbps 1-Port PCIe Card is a low-profile PCIe adapter card for Mac®, Windows® and Linux® computers that connects a single USB-C peripheral device. The card installs into an available x4 PCIe card slot and uses drivers built into the operating system software. In addition to the full-height PCIe bracket attached to the Allegro Max card, Sonnet includes a low-profile bracket in the package that enables the card’s use in computers that cannot support a full-height card.

Why It’s Important:
Many desktop computers include only 10Gbps and slower USB ports, limiting data transfer speeds of connected storage devices to 1,000 MB/s or less. However, by integrating the Sonnet Allegro Max USB-C 20Gbps 1-Port PCIe Card, users can experience a significant enhancement in data transfer speeds. By supporting USB 3.2 Gen 2x2 SSDs’ data transfer speeds up to 2,000 MB/s, the card enables content creators to save or read files up to twice as fast as possible with a 10Gbps connection, while gamers may load stored games in half the time. The Sonnet Allegro Max USB-C 20Gbps 1-Port PCIe Card delivers its impressive performance boost for the fastest USB 3 SSDs, and also supports most other USB devices at maximum performance.

When You Can Get It:
The Allegro Max USB-C 20Gbps 1-Port PCIe Card (part number USB3C-1M20G-E) is available now from Sonnet and soon from its worldwide distribution and reseller partners at the suggested retail price of $34.99.

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About Sonnet Technologies
Sonnet Technologies, Inc. is a leading provider of Thunderbolt™ technology products and network, storage, and other interface cards for pro users in the audio, video, and broadcast industries. Sonnet’s array of Thunderbolt products includes a broad variety of docks, pro media readers, and network interface and display adapters, plus PCIe® card expansion systems that enable the use of pro audio I/O and DSP cards, pro video capture and transcoding cards, GPU cards, and other high-performance PCIe cards with computers with Thunderbolt ports. Due to Sonnet’s Thunderbolt Technology expertise, it has become a leading designer/manufacturer of ODM boards which enable the integration of Thunderbolt ports into third-party products. For 35 years Sonnet has pioneered and brought to market numerous innovative and award-winning products that enhance the performance and connectivity of Mac®, Windows®, and Linux® computers. More information is available at

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