SONNET Allegro Pro USB-C 8-Port PCIe Card

PCIe Card


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Pro Ports.
Max Performance from Each One.

First pro PCIe adapter card with eight external USB-C ports, four USB 3.2 controllers, and an x8 PCIe 3.0 bridge chip

Even in computers with multiple expansion card slots, every slot is valuable — there may not be space to install two 4-port adapter cards. Sonnet’s Allegro™ Pro USB-C® 8-Port PCIe Card is the first adapter card ever to feature eight high performance USB-C ports, fitting them neatly on a standard full-height PCIe card bracket. Ports are spaced to enable connection of eight cables (and even USB-C male to USB-A female adapters).

Why Sonnet? Many multi-port USB cards split a single USB controller’s bandwidth among their ports, limiting performance when two or more devices are connected and operating. When installed in a computer’s PCIe 3.0 or 4.0 slot, Sonnet’s card provides full 10Gbps bandwidth to every one of its eight ports, ensuring maximum performance from each one.

The Most Capable 10Gbps USB Card
USB SSD Nirvana

Equipped with NVMe SSDs, the fastest USB 3.2 Gen 2 drives available can transfer data at incredible speeds. Chances are your computer has few ports capable of supporting their full performance. Upgrade your workflow in a major way by installing Sonnet’s Allegro Pro USB-C 8-Port PCIe Card in your Mac Pro®, Windows, or Linux computer; or Echo™ III Thunderbolt™ to PCIe card expansion system to support up to eight NVMe USB drives at maximum performance(1), no power adapters needed


Key Features

Eight USB-C 10Gbps Ports
  • Ports are spaced to enable connection of eight cables (and even USB-C to USB-A adapters)
Intelligent Power Delivery & Management
  • Independent, per-port power regulation – prevents power glitches that cause auto-disconnects of already-connected drives

Advanced Data Traffic Management

  • This Sonnet card supports “Multiple Ins,” which means that that the host can issue a read request to one endpoint device and then proceed with other transactions without waiting for the response from the first device, eliminating traffic congestion.

Powered Ports

  • Supports USB-C bus-powered SSD, SSD RAID, and hard drive devices with up to 7.5W power per port.

Protected Power Delivery

  • Sonnet USB 3.2 cards uniquely have a power switch on each USB 3 port that manages and monitors the current flow of the port. The switch limits the current draw when a new USB 3 device is connected, minimizing the voltage droop of the main USB 5V power rail, thereby protecting devices connected to other USB ports from going offline because of port power droop.

Supports Four Independent Physical Connections to VMs

  • Four independent USB 3.2 controllers control a pair of ports each. If your VM software supports direct physical connections, then each of the Sonnet card’s controllers can be independently attached to a separate virtual machine.

Supports Hot-Swappable Device Connections

  • Plug in and disconnect peripherals without shutting off your computer.

Broad USB Device Support and Compatibility

  • Supports storage, hubs, and other USB-IF compliant devices.

Easy Installation

  • Quick and easy installation into any available x16 PCIe slot, plus no driver installation required.

Great for Use in Thunderbolt Expansion Systems

  • Use in Sonnet Thunderbolt expansion systems with an available x16 PCIe card slot to power and connect eight 10Gbps USB SSDs to your computer.

Mac, Windows, and Linux Compatible

  • Compatible with Mac, Windows, and Linux computers.




Allegro Pro USB-C 8-Port PCIe Card