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Quick Start Guide 

You Should Have

The following items should be included in your product package: 

• One Allegro Pro USB 3.1 PCIe card 

• Quick Start Guide
The following items may be required for installation: 

• Medium Phillips screwdriver

Computer Compatibility

•  Mac Pro

®

 (Early 2008 or newer) or other computer with full-height 

PCIe x4 (mechanical) slot

OS Compatibility

• macOS

®

 10.10.5, 10.12.6+; 

not compatible with macOS 10.11 

• Windows

®

 10, 8, 7

• Windows

 

Server 2016, 2012, 2008 (64-bit editions)

• Linux

® 

Kernel 5.0+ 

 

Thunderbolt™ Compatibility

•   Mac

®

, Windows, or Linux computer via a Thunderbolt 2 or 

Thunderbolt 3 PCIe card expansion system

• macOS 10.12.6+
• Windows 10 (64-bit Edition Version 1809 or newer)

Driver Information 

For Mac users, the standard drivers that enable the Allegro card 

to work in your computer or Thunderbolt expansion chassis are 

installed as part of macOS 10.10.5, and 10.12.6 and later; the Allegro 

card is ready to use when you power on your computer. 

For Windows users, the drivers that enable the Allegro card to work 

in your computer running supported versions of Windows except 

Windows 7 (32- and 64-bit versions) are installed automatically. For 

Windows 7 users, please go to www.sonnettech.com/support/kb/

kb.php, click the Computer Cards link, and then the PCIe Cards link. 

Locate and click Allegro Pro USB 3.1 PCIe link, and then click the 

Driver link. Locate, download, and install the appropriate drivers. For 

all other users, update Windows to the latest version to ensure full 

support and performance. 

For Linux users, the drivers that enable the Allegro card to work in 

your computer running Linux Kernel 5.0 and later are installed 

automatically; the Allegro card is ready to use when you power on 

your computer

Important Note for Mac Users

In order for this product to support full iOS

®

 device charging 

capabilities in systems running macOS, and have the power required 

to operate the Apple SuperDrive and bus-powered peripherals plugged 

into the Apple wired USB keyboard, you must download and install a 

Sonnet driver. Go to www.sonnettech.com/support/kb/kb.php and 

click the Computer Cards link, and then click the PCIe Cards link. 

Click the Allegro Pro USB 3.1 PCIe link, and then click the Driver 

link. Download and install the USB 3.0 Power Kernel Extension.

Installation Preparation

Sonnet strongly recommends that you read the section in your 

computer’s user manual that addresses PCIe card installation, prior to 

installing the Allegro card into your system.

Card Installation Steps

 1.

 Shut down your computer or Thunderbolt-to-PCIe card 

expansion chassis, and then open it to access the expansion 

card area (PCIe slots); refer to the user’s manual for specific 

information.

 2.

 Locate an available PCIe slot and remove its access cover. 

 3.

 Remove the Sonnet card from its packaging, and then install it 

into the PCI Express slot; 

make sure the card is firmly seated 

and secured.

 4.

 Close the computer or Thunderbolt-to-PCIe card expansion 

chassis. 

Allegro

 Pro USB 

3.1

 PCIe

®

Professional 4-Port 10Gb USB-A 

PCIe

®

 Card With Charging Capability   

©2019 Sonnet Technologies, Inc. All rights reserved. Sonnet, the Sonnet logotype, and Allegro are trademarks of Sonnet 
Technologies, Inc. iOS, Mac, the Mac logo, Mac Pro, and macOS are trademarks of Apple Inc., registered in the United States and 
other countries. Thunderbolt and the Thunderbolt logo are trademarks of Intel Corporation in the U.S. and/or other countries. 
Other product names are trademarks of their respective owners. Product specifications subject to change without notice.  
QS-USB3-PRO-4P10-E-E-C-082019

 

 Support  Notes:

 When handling computer products, you 

must take care to prevent components from being damaged 

by static electricity. Before opening your computer or removing 
parts from their packages, always ground yourself first by touching 
a metal part of the computer, such as a port access cover, and work 
in an area free of static electricity; avoid carpeted areas. Handle 
all electronic components by their edges, and avoid touching 
connector traces and component pins.

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