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Silver PCIe card with four USB Type A ports and gold edge connector

Sonnet Technologies

Sonnet Technologies expansion card

SKU CH-0QWS-97EXM

Adds 10Gbps USB-A ports to a Mac Pro or Windows PC via a PCIe slot, delivering up to 7.5W per port with independent power regulation

  • Product typePCI Express to USB Card
  • Four SuperSpeed 10Gbps USB-A ports added via PCIe
  • Dual USB 3.2 Gen 2 controllers deliver up to twice the speed of USB 3.0 and USB 3.1 Gen 1
  • Each port supplies up to 7.5W for bus-powered drives
  • Independent power regulation with resettable fuses prevents cross-coupled glitches
  • Compatible with Mac, Windows 11+ and Linux; backed by 2-year warranty and lifetime support since 1986

Sonnet Allegro Pro USB 3.2 PCIe Card

This Sonnet Allegro Pro add-in card installs into a PCI Express slot to provide additional high-speed connectivity. It equips a Mac Pro, Windows PC or Thunderbolt to PCIe expansion system with four SuperSpeed 10Gbps USB-A ports. The board uses dual USB 3.2 Gen 2 controllers to move data at up to twice the rate of earlier USB 3.0 and 3.1 Gen 1 links.

Suited for storage and peripheral expansion

Creators and professionals who need to connect multiple bus-powered SSDs, SSD RAID arrays or hard drives will benefit from 7.5W of regulated power on every port. Independent power regulation prevents cross-coupled glitches and resettable fuses protect both the card and host. Buyers who require internal headers, USB-C connectors or a different port count should consider other options.

Dual USB 3.2 Gen 2 controllers

The two onboard controllers deliver up to 10Gbps bandwidth per port for fast transfers between attached drives. This specification determines whether the card matches the throughput needs of high-performance external storage workflows. Compatibility spans Mac, Windows 11 and Linux platforms with driver support.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $114.99
Pricier than about 86% of the 891 comparable items (median $30.99).

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Specifications

Product
Product typePCI Express to USB Card

Questions about this item

Does my computer need a free PCIe slot to install the Sonnet Allegro Pro card?

Yes, the card plugs into an available PCI Express slot inside a Mac Pro, Windows PC or Thunderbolt to PCIe expansion system.

Will my existing USB 3.0 drives still work when connected to the 10Gbps USB-A ports?

They will work at their native 5Gbps speed; the card is backward compatible with USB 3.0 and 3.1 Gen 1 devices.

How can I confirm each port is delivering the full 7.5W of bus power after installation?

Connect a bus-powered SSD or RAID; if it mounts and transfers without disconnects, the independent power regulation and resettable fuses are functioning correctly.

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