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Introduction

Congratulations on your purchase! The Echo ExpressCard Pro 

Thunderbolt adapter is a professional SxS card reader, and expansion 

system for PCIe-based ExpressCard/34 adapter cards. Connection 

of the Echo adapter to your computer requires a single Thunderbolt 

cable (sold separately).

Mac Compatibility 

• Mac

®

 with a Thunderbolt or Thunderbolt 2 port 

• Mac with a Thunderbolt 3 port with an Apple Thunderbolt 3    

  (USB C) to Thunderbolt 2 Adapter 

• OS X

®

 10.6.8+ 

• macOS

®

 Sierra compatible

Windows Compatibility 

• PC with a Thunderbolt 2 port 

• Windows

®

 10, 8, 7

SxS Media Compatibility

• Mac and PC compatible

User’s Guide 

E

cho

 E

xpress

C

ard

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 P

ro

 T

hunderbolt

 A

dapter

Thunderbolt SxS™ Card  ExpressCard Adapter

Connecting the Echo Adapter

 •  Connect the Echo adapter to your computer or another 

Thunderbolt device using only a Thunderbolt cable.

 •  Connect the Echo adapter directly to your computer, or to another 

peripheral device at the end of the Thunderbolt daisy chain 

connected to your computer.

Inserting and Removing Cards

•  Do not force a card into the slot, as you may damage the card or 

the slot connector.

• To insert a card, push it straight into the slot until it stops.

•  To remove a card, pull it straight out.

•  If you are using an ExpressCard/34 card to which you connect 

cables, always connect the cables to the adapter card before 

inserting it into the Echo adapter’s slot.

Before Using the Echo Adapter

Prior to using the Echo adapter with your computer, familiarize 

yourself with the adapter and any cards you plan to use. 

Figure 1 

shows the Echo adapter’s ExpressCard/34 (SxS card) slot. 

Figure 2

 shows the Thunderbolt port.

ExpressCard/34

slot

Thunderbolt port

 

 Support  Note:

 This document was up to date at the time 

of printing. Please check the Sonnet website for the latest 

documentation. 
 

1.

  Go to www.sonnettech.com/support/

 

2.

  Click the Downloads, Manuals, FAQs link.

 

2.

  Click the Thunderbolt Product link.

 

3.

   Click the Echo ExpressCard Thunderbolt Adapters link, and then 

click the Manual link. 

 

5.

   Click the Echo ExpressCard Thunderbolt Adapters User's Guide 

[English] link and then check the Document Version information. 
If the version listed is later than this document (revision D), click 
the Download Now button for the latest version.  

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