- Tech Specs
|SuperSpeed USB-C 10Gbps • Dual Controllers for Fast Drive-to-Drive Transfers
USB-C Charge & Sync • Four Ports with up to 7.5W Power per Port
Powerful USB 3.2 Gen 2 Performance
Equipped with SSDs, the fastest USB 3.2 Gen 2 drives you can buy today are capable of 800 MB/s data transfers—many are bus-powered, too. But, most desktop computers (even new models) include generations-old USB interfaces that will throttle that performance and may not offer adequate power to allow bus-powered drives to operate. Break through the bottleneck—install Sonnet’s Allegro™ USB-C® 4-Port PCIe(1) card in your Mac Pro® or Windows® PC computer with PCIe slots; or Thunderbolt™ to PCIe card expansion system to support your fast USB drives at maximum performance.
Two Controllers, Four Ports
Featuring two 10Gbps USB 3.2 Gen 2 controllers and four USB-C ports, the Allegro PCIe card supports data transfers at up to twice as fast as USB 3.0 and USB 3.1 Gen 1 ports are capable. With two controllers onboard, the Allegro card speeds data transfers between connected drives, and enables your computer to load and off-load data more quickly.
Four SuperSpeed USB-C 10Gbps Ports—Adds four USB-C 10Gbps ports to your Mac Pro or Windows PC computer with PCIe slots; or Thunderbolt to PCIe card expansion system
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; speed data transfers between connected drives
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—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
Broad USB Device Support & Compatibility—Supports storage, hubs, and other USB-IF compliant USB devices
Add USB 3.2 Gen 2 to Thunderbolt Expansion Systems—Add four SuperSpeed USB-C 10Gbps ports to Thunderbolt to PCIe card expansion systems
Supports Hot-Swappable Device Connection—Plug in and disconnect peripherals without shutting off your computer
Easy Installation—Quick and easy installation into any available PCIe slot
Speed and Power
Unlike other 4-port USB cards (simple hubs that split a single USB controller’s bandwidth between all four ports), Sonnet’s Allegro PCIe card supports data transfers from a single USB 3.2 Gen 2 SSD RAID device at up to 800 MB/s— compared to using a USB 3.1 Gen 1 or USB 3.0 adapter card, transfers complete in half the time! Exploiting its dual controllers design, it’s possible to simultaneously transfer data to two connected drives at up to 660 MB/s each. With four drives connected, the four ports support simultaneous 300 MB/s transfers!
Sonnet Port Power Advantages:
Unlike ordinary USB-C adapter cards, Sonnet's Allegro PCIe card was designed with a focus on intelligent power delivery and management for powering attached drives through its ports.
No Auxiliary Power Required
Easy to Access Ports
Sonnet designed the Allegro USB-C 4-Port PCIe card with custom USB-C connectors that locate the ports near the center of the PCIe bracket. Unlike other cards that use standard Type-C connectors that are mounted close to the edge of the bracket, this Allegro card provides plenty of clearance for you to plug in cables.
Computer hardware shown in photos for illustration purposes; items sold separately.
See Tech Specs Tab for footnotes
Mac Pro® 3,1(3), 4,1, 5,1, 7,1 (2019)(4), or 14,8 (2023)(4)
macOS Sonoma compatible
Computer with PCIe slots
Windows 11, 10, 8.1, 7
Windows Server 2019, 2016, 2012, and 2008 (64-bit editions)
Linux Compatibility (See Tech Note 1149)
Computer with PCIe slots
Linux Kernel 5.4.0+
Thunderbolt PCIe Expansion System Compatibility
Supports USB 3 devices when card is installed in a Thunderbolt to PCIe Card Expansion System