Allegro Pro Type A USB 3.2 PCIe Card (4-ports • USB-A 10 Gbps/USB 3.2 Gen 2 • Dual controllers • USB charging)
Part No. USB3-PRO-4P10-E

Add Four USB-A 10 Gbps Ports
Allegro Pro Type A USB 3.2 PCIe Card
4-port, SuperSpeed USB-A 10 Gbps PCIe Card with Dual Controllers and USB Charging
Two Times the Performance as USB 3.0 and USB 3.1 Gen 1 Connections
The fastest SSD-based USB 3.2 Gen 2 drives now available can transfer data at 800 MB/s — many are bus-powered, too. But, most desktop computers (including many new models) feature old-generation USB interfaces that can’t support that performance, and may not provide enough power to enable those bus-powered drives to function. Break through the bottleneck — install Sonnet’s Allegro Pro Type-A USB 3.2 PCIe to instantly add four USB-A 10 Gbps ports to your system.
Two Gen 2 Controllers, Four USB-A Ports
Featuring two 10 Gbps USB 3.2 Gen 2 controllers and four USB-A ports, the Allegro PCIe card supports the fastest USB drives available, yet provides the most common connection type for peripheral devices.
Speed and Power
Connected to a single USB 3.2 Gen 2 SSD RAID device, Sonnet’s Allegro PCIe card supports data transfers up to 800 MB/s — transfers complete in half the time compared with using a USB 3.1 Gen 1 or USB 3.0 adapter card. Made possible through the use of dual controllers, with two connected drives, each port supports simultaneous 660 MB/s transfers. With four drives connected, each port supports simultaneous 300 MB/s transfers.
No Auxiliary Power Needed
Ordinary USB-A cards require the connection of a separate power connector. The Allegro draws the power it needs from the slot it’s installed in to power connected drives, enabling you to install the card in any compatible computer or Thunderbolt expansion system that doesn’t have these power connectors available.
Independent Power Regulation
Ordinary USB-A cards can provide poor power regulation through their ports. The Allegro PCIe card protects each port from power glitches on adjacent ports — such as when a hard drive spins up after connection — preventing auto-disconnects of already-connected drives.
Resettable Fuses
Unlike ordinary USB-A cards, the Allegro features a resettable fuse on each port to protect the card and your computer should a cable or peripheral fail. Resetting a tripped fuse is simple — just shut down and restart your computer.
Add USB 3.2 to Your Thunderbolt Mac
Got a Mac with a Thunderbolt connection, but no PCIe slot? The Allegro is ideal for use in a Sonnet Thunderbolt expansion system.
Perfect for the Extra Slot In Your Multi-Slot Thunderbolt System
Have a multi-slot Thunderbolt expansion system with an open slot? Installing an Allegro Pro Type-A USB 3.2 PCIe card is an excellent way to inexpensively add four SuperSpeed USB-A 10 Gbps ports to your computer.
Easy Installation, Broad Device Support
The full-height Allegro PCIe card installs easily into any PCIe x4 (mechanical) or larger slot. The Sonnet card features hot-pluggable and hot-swappable device connection support with automatic device configuration, and works with all USB-IF compliant USB peripherals.
Key Features & Specifications
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Four SuperSpeed USB-A 10 Gbps Ports – Adds four USB-A 10 Gbps ports to your Mac, Windows, or Linux computer or Thunderbolt expansion system with PCIe slots.
- Powerful Performance with Dual USB 3.2 Gen 2 Controllers – Support data transfers at up to twice as fast as USB 3.0 and USB 3.1 Gen 1, and boost data transfer speeds between connected drives.
- Powered Port – Supports USB bus-powered SSD, SSD RAID, and hard drive devices with up to 7.5W power per port.
- Supports Charge & Sync – Supports USB 3.0 charging port handshake, and will simultaneously sync and charge iPads and other devices that support USB 3.0 charging at 1.5A per device.
- Protected Power Delivery – Independent power regulation isolates each port to prevent cross-coupled power glitches that may cause accidental disconnects; resettable device overcurrent fuses protect the card and computer, and may be reset by a simple shutdown.
- Add USB 3 Thunderbolt Expansion Systems – Add four SuperSpeed USB-A 10 Gbps ports to Thunderbolt expansion systems.
- Easy Installation – Quick and easy user installation into any available PCIe slot.
- Broad USB Device Support & Compatibility – Supports storage, hubs, and other USB-IF compliant USB devices.
- Compatibility – Mac, Windows, and Linux computers and Thunderbolt expansion systems. See Tech Specs for details.
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Package Contents – Allegro Pro Type-A USB 3.2 PCIe card; documentation.
- Warranty – 2-year product warranty.
- Customer Support – Lifetime technical support.
- The Sonnet Advantage – Innovating technology since 1986.
Note: Computers and accessories featured in photos are not included with the product. Product specifications are subject to change without notice.
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Product Overview and Tech Specs
Visit: Product Page
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Pre-sales Questions?
Contact: sales@sonnettech.com
WARNING: California’s Proposition 65