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Sonnet Allegro USB-C 2-Port PCIe Card (TB compatible)

Item: PCM0017324-000
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SuperSpeed+ USB Technology, PCIe card, expansion, USB-C powered, USB 3.0, Thunderbolt 3, Mac, PC, Linux, Windows  All product info

£ 103.00
incl. VAT, plus Shipping Costs
or cheap with financing
available soon, estimated to be in stock: Mar 1, 2024
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Product information - SONNET Allegro USB-C 2-Port PCIe Card

Dual port USB 3.2 Gen 2 PCIe 3.0 card with 15W power supply per port

The Allegro USB-C 2-Port PCIe Card is designed to expand your Mac Pro, Windows PC, Linux computer or Thunderbolt-to-PCIe expansion system with two 10Gb USB-C ports. Get up to 2x the data transfer rates compared to USB 3.0 and use a variety of external devices from different manufacturers to professionally expand your setup. Power is supplied via USB-C and delivers 15W per port to your SSDs, SSD RAID systems and other external drives. The ports are independently regulated, so if one USB-C port is overloaded, the other remains functional.

Backup function

Furthermore, the USB-C card has resettable fuses for each of the two ports. This is to protect your computer and the card from defective peripherals. Should a power failure occur, the card can be easily reset by shutting down your computer.

PCIe Auto-Negotiation

To ensure maximum bandwidth even in older systems, the PCIe card works with PCIe Auto-Negotiation. It automatically negotiates an x1 data connection in a PCIe 3.0 slot and an x2 connection in a PCIe 2.0 slot.

Thunderbolt optimization

For those with a Thunderbolt port instead of a PCIe slot, the Allegro USB-C PCIe card can also be used via Thunderbolt 2 or TB 3 expansion systems such as Sonnet Echo Express or xMac Thunderbolt-to-PCIe devices. In the combo, the card works at maximum performance.

Installation made easy

Sonnet's USB-C PCIe card can be easily installed in a PCIe x4 slot. Included are a low-profile and eStandard bezel, while the card itself is hot-swappable. This means that USB devices can be plugged in and unplugged during operation. Furthermore, all USB-IF compliant USB peripherals are supported.


  • low-profile PCIe x4 card
  • standard and low profile bezel included
  • bus interface: PCI Express 2.0 x2 or 3.0 x1 (Auto Negotiation)
  • supported peripherals: USB 3.1 Gen 2, 3.0, 2.0 and 1.1
  • TB3 peripherals are not supported
  • compatible with various HDD, SSD, SSD RAID, DVD and Bluray devices
  • Up to 15W per USB-C port for charging and using devices

Supported cables:

  • USB-C 10Gbits
  • USB-C 5Gbps
  • TB 3 (passive cable)

Mac Compatibility

  • Mac Pro 3,1,4,1 and 5,1
  • macOS 10.10.5, 10.12.6+
  • not compatible with or X 10.11
  • MacOS High Sierra

Windows Compatibility

  • Computers with PCIe slots
  • Windows 10, 8.1, 7
  • Windows Server 2016, 2012 and 2008 64-bit version

Linux compatibility

  • Computers with PCIe slots
  • Linux 4.12+ kernel, LTS version only


  • Manufacturer: Sonnet
  • Other interfaces: USB-C
Sonnet Allegro USB-C 2-Port PCIe Card  (TB compatible) Product ImageSonnet Allegro USB-C 2-Port PCIe Card (TB compatible)
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