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Silver PCIe card with four blue USB-A ports and a full-height bracket

Sonnet Technologies

Sonnet Technologies USB3-PRO-4P10-E Intel motherboard

SKU CH-15TM-GN2P0 MPN USB3-PRO-4P10-E

Adds four 10 Gbps USB 3.1 Gen 2 ports via PCIe for up to 800 MB/s transfers

  • Add four 10Gbps USB-A ports for maximum flexibility
  • Dual Gen 2 controllers enable 800 MB/s transfers with fast SSD RAID devices
  • Thunderbolt compatible expansion for Mac Pro, Windows or Linux systems
  • Bus-powered drive support eliminates need for external power adapters
  • PCIe card breaks through old-generation USB bottlenecks

Four 10Gbps USB-A ports for high-speed drives

The Sonnet Allegro Pro USB 3.1 PCIe card adds four SuperSpeed+ USB-A connections to a Mac Pro tower, Windows PC, or Linux computer with an available PCIe slot. It uses two 10Gbps USB 3.1 Gen 2 controllers to deliver the bandwidth needed for the fastest external SSDs. The card also works inside a Thunderbolt to PCIe expansion system for added flexibility.

Capacity and headroom at 800 MB/s

Connected to a USB 3.1 Gen 2 SSD RAID device, the card supports sustained transfers up to 800 MB/s, cutting copy times in half compared with USB 3.0 or USB 3.1 Gen 1 adapters. Bus-powered drives that demand more current than older ports can supply will operate reliably on these ports. The dual-controller design keeps each port at full Gen 2 speed even when multiple drives are active.

No bundled software or accessories change

The product ships as the PCIe card only; no cables, mounting brackets, or driver discs are included in the box. Installation relies on the native USB 3.1 support already present in modern macOS, Windows, and Linux kernels, so no extra software install is required. Thunderbolt compatibility is provided by the host enclosure, not by an accessory in this package.

Highlights

  • Add four 10Gbps USB-A ports for maximum flexibility
  • Dual Gen 2 controllers enable 800 MB/s transfers with fast SSD RAID devices
  • Thunderbolt compatible expansion for Mac Pro, Windows or Linux systems
  • Bus-powered drive support eliminates need for external power adapters
  • PCIe card breaks through old-generation USB bottlenecks

Specifications

No published specifications for this item yet.

Questions about this item

Will the Allegro Pro card work in my older Mac Pro tower or Windows PC that only has PCIe slots and no Thunderbolt?

Yes, the card installs in any system with an available PCIe slot, including Mac Pro towers, Windows PCs and Linux computers, and does not require a Thunderbolt connection to operate.

How can I verify the card is delivering the full 10Gbps Gen 2 speed after I install it?

Connect a USB 3.1 Gen 2 SSD RAID device and run a transfer test; the card supports up to 800 MB/s throughput when both controllers are active.

Does the box include any cables or power adapters, or do I need to buy them separately?

The card provides four USB-A ports directly on the bracket; no extra cables or power adapters are required for the ports themselves.

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