Sonnet Allegro USB Type-C 3.1 2-Port 10Gb PCIe Card

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Key features

  • USB Adapter plug-in with PCI Express host interface
  • Featuring 2 USB ports to connect USB-compatible devices
  • Adds Two 10 Gb/s USB Type-C Slots
  • Delivers 15W of Power per Port
  • Protected Ports
  • Resettable Fuses
  • PCIe Auto-Negotiation
  • Optimized for Thunderbolt
  • Easy Installation

Ports 4 x USB 3.1, external port
System Requirements Mac Compatibility:
Mac Pro (with card slots)
OS X 10.10.5
OS X 10.12.6+
OS X High Sierra
PC Compatibility:
Computer with PCIe slots
Windows 10
Windows 8.1
Windows 7
Windows Server 2016
Windows Server 2012
Windows Server 2008 (64-bit edition)
Linux Compatibility:
Computer with PCIe slots
Linux 4.12+ Kernel (LTS version only)
Thunderbolt Compatibility:
Any Mac or PC with a Thunderbolt 2 or Thunderbolt 3 port and a Thunderbolt-to-PCIe Card Expansion System
Form Factor 4 x PCIe low-profile computer card
Bus Interface 2 x PCI Express 2.0 or 1 x PCI Express 3.0 auto-negotiate
Peripherals Supported Industry standard USB 3.1 Gen 2, 3.0, 2.0, and 1.1 (not compatible with Thunderbolt 3 peripherals)
Bus-Powered Peripherals Supported HD, SSD, SSD RAID, DVD, and Blu-ray devices
3 A per port using USB Type-C channel configuration
Up to 15 W per port for operation or charging
Cables Supported USB Type-C 10 Gb/s
USB Type-C 5 Gb/s
Thunderbolt 3 40 Gb/s (0.5-meter only)
Thunderbolt 3 20 Gb/s
Chipset ASMedia 1142
RoHS Compliance Yes
USB Standard Complies with OHCI (Open Host Controller Interface), EHCI (Enhanced Host Controller Interface), and xHCI (eXtensible Host Controller Interface) standards
UASP Support USB attached SCSI protocol supported under macOS 10.10 and 10.12+ and Windows 10
Throughput Chipset Throughput: 10 Gb/s combined port throughput
Number of Devices Supported Up to 31
Hot Plug Supports hot-pluggable and hot-swappable device connection

The Allegro USB Type-C 3.1 2-Port 10Gb PCIe Card from Sonnet supports data transfers at up to twice as fast as USB 3.0, and can also deliver 15W of power per port to USB Type-C bus-powered devices. It adds two 10 Gb/s USB Type-C (USB 3.1 Gen 2) ports to your Mac Pro with PCIe slots, Windows PC, Linux computer, or Thunderbolt to PCIe card expansion system. This PCIe computer card supports data transfers up to 960 MB/s when connected to a USB Type-C Gen 2 SSD RAID device. The ports communicate with the host that 3A of VBUS current is available, enabling this solution to support USB Type-C bus-powered SSDs and SSD RAID devices that need 15W during demanding write operations.

Regulates Power to Each Port
The Allegro card regulates its own power without requiring a back-of-the card power cable connection, thus enabling full compatibility in any computer or Thunderbolt expansion chassis that doesn't have these power connectors available. It regulates power to each port independently, giving each one protection from power glitches on the adjacent port. Without this protection (such as found on an ordinary card), connects and disconnects of one device may cause auto-disconnects of the other.
Resettable Fuses
The Allegro USB Type-C card features a resettable fuse on each port to protect the card and computer should there be a cable or peripheral failure. Should a fuse trip on the Sonnet card, you can reset it simply by shutting down the computer.
PCIe Auto-Negotiation
The Allegro USB Type-C PCIe features PCI Express auto-negotiation. The card automatically negotiates to a x1 data link in a PCIe 3.0 slot, and to a x2 link in a PCIe 2.0 slot, giving full bandwidth to both generations of PCIe slots, ensuring great performance in any configuration.
Optimized for Thunderbolt
The Allegro USB Type-C PCIe card is ideal for use in any Thunderbolt 2 or Thunderbolt 3 to PCIe card expansion chassis, including Sonnet's Echo Express or xMac Thunderbolt to PCI Express card expansion systems, offering full performance wherever you install it.
Easy Installation
This PCIe card installs easily into any PCIe x4 (mechanical) slot; both low-profile and full-height mounting brackets are included. The card features hot-pluggable and hot-swappable device connection support with automatic device configuration, and works with all USB-IF compliant USB peripherals.
Storage2TB (4 x 500GB)
Noise CancelingYes
In the Box
Box Contents
Sonnet Allegro USB Type-C 3.1 2-Port 10Gb PCIe Card
  • Low-Profile Mounting Bracket
  • Limited 1-Year Warranty
Lock SlotYes
Form FactorPlug-in Card
Beamforming SupportYes
WarrantyLimited 1-Year Warranty


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