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Product Information

Using the Fusion Thunderbolt 3 PCIe Flash Drive – 

Windows Edition

Listed here is some general information about using this device 
with your computer:

First Time Use—Windows Users  

The first time you connect the Fusion Thunderbolt 3 PCIe Flash 
Drive to your computer, an Approve New Thunderbolt™ Devices 
window will appear. From the drop-down menu select Always 
Connect, and then click OK. 

Formatting the Drive 

The Fusion Thunderbolt 3 PCIe Flash Drive is shipped from 
Sonnet unformatted. Use Disk Utility or Windows Disk 
Management to set up the device for use.

Product Description

Shown below is a picture and descriptions of the Fusion PCIe 
Flash Drive’s connector and indicator.

Thunderbolt 3 (USB Type-C) Connector

—Plug this connector 

into one of your computer’s Thunderbolt 3 ports (often indicated 
by a   logo), or at the end of a Thunderbolt device chain.

Drive Power and Activity Indicator LED—

This LED 

indicates the drive’s ready state (LED on), as well as read and 
write activity (LED flashing).

Known Issues 

• 

 

While the Fusion Thunderbolt 3 PCIe Flash Drive features a 
40Gbps Thunderbolt 3 interface, some computers equipped 
with Thunderbolt 3 use an x2 PCIe lane implementation of 
Thunderbolt 3 technology that limits PCIe performance to 
20Gbps, which will result in data transfer speeds of only up 
to 1,400 MB/s. The MacBook Pro (13-inch, Late 2016, Four 
Thunderbolt 3 Ports) has this limitation in the two right-hand 
Thunderbolt 3 ports, while offering full performance from the 
left-hand ports.  

•  The Fusion Thunderbolt 3 PCIe Flash Drive is not compatible 

with the Apple Thunderbolt 3 (USB-C) to Thnderbolt 2 
adapter; the drive requires more power than a Thunderbolt 2 
connection can provide.

Advice 

•  For Mac Users: If you do not need to boot macOS from the 

Fusion flash drive, formatting it as ExFAT may deliver better 
performance than when it is formatted as Mac OS Extended 
(Journaled). If you need to boot macOS from the Fusion flash 
drive, it must be formatted as one of the Mac OS Extended 
formats.

•  Always “eject”, “stop”, “unplug”, or “safely remove” the Fusion 

Thunderbolt 3 PCIe Flash Drive before disconnecting it from 
your computer or other Thunderbolt device ahead of it in a 
daisy chain. 

•  Disconnecting the Fusion Flash Drive while is transferring 

or receiving data may result in damage to the file(s) being 
transferred or cause your system to hang. 

•  

You may connect the Fusion Thunderbolt 3 PCIe Flash Drive 
to, and disconnect it from, your computer while it is on; be sure 
to follow the above advice regarding disconnecting the drive.

•  When plugged in at the end of a Thunderbolt 3 device daisy 

chain, the Fusion Thunderbolt 3 PCIe Flash Drive may not 
perform at its peak. 

Thunderbolt 3

Connector

Indicator LED

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