Sonnet AllegroPro USB-C 8-port PCIe Card
PCI-Express 3.0 x8 controller card with 8 USB-C 3.1 ports
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Sonnet Allegro USB-C 8-Port PCIe Card
The Sonnet Allegro Pro USB-C 8-Port PCIe Card is a high-performance expansion solution that transforms a standard PCIe slot into eight ultra-fast 10 Gbps USB-C ports. Designed for demanding professionals and systems requiring massive access to USB-C peripherals, it delivers maximum bandwidth for each port, ensuring smooth and fast data transfers even with multiple devices connected simultaneously. This PCIe card is ideal for improving your workflow and taking full advantage of your high-speed USB-C peripherals. Easy to install in a PCIe x16 slot, this card allows you to instantly increase the connectivity of your workstation, PC or Thunderbolt expansion system.
The Sonnet Allegro Pro USB-C 8-Port PCIe Card offers eight high-performance USB-C ports on a single full-height card, leveraging USB 3.2 Gen 2 technology to deliver 10 Gbps of bandwidth per port. Thanks to an advanced architecture based on four independent USB controllers and a PCIe 3.0 x8 bridge, each port delivers maximum transfer speeds even when using multiple high-speed devices simultaneously. The ports are spaced to facilitate the connection of eight cables, including USB-C to USB-A adapters, and provide up to 7.5W of power per port, eliminating the need for external power supplies for many peripherals.
Key features:
- Standard PCI Express 3.0 x16 interface, full height
- 8 x 10 Gbps USB-C ports (USB 3.2 Gen 2)
- 4 independent USB 3.2 controllers + PCIe x8 bridge
- Bandwidth: up to 10 Gbps per port, even simultaneously across all ports
- Power delivery per port: up to 7.5 W (ideal for SSDs and other bus-powered devices)
- Advanced features: intelligent power management, hot-plug/hot-swap support, USB-C to USB-A adapters supported
- Usage: installation in PCs with PCIe slots or in Thunderbolt expansion systems to add high-performance USB-C ports
- Compatibility: Mac, Windows and Linux
Select your criteria
General information |
Product name |
Sonnet AllegroPro USB-C 8-port PCIe Card |
Brand |
Sonnet | |
Model |
USB3C-8PM-E | |
Technical specifications |
Bus |
PCI Express 3.0 x16 (x8) |
Controllers |
USB 3.1 | |
Connector(s) |
8 X USB 3.1 Type C | |
Supported OS |
Apple Mac OS | |
| Linux | ||
| Microsoft Windows 11 | ||
Warranties |
Commercial warranty |
Seller 2 years
|
Legal warranty |
See terms & conditions
|
See all Sonnet products
Product referenced on 25 Feb 2026
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