Sonnet Echo Express SEL, User Manual

1

Chapter 1 – Introduction and System Requirements

Introduction

Congratulations on your purchase! The Echo Express SEL is a 
Thunderbolt 2 expansion system for PCIe cards. Through its 
PCIe slot, you may connect a low-profile expansion card to your 
iMac

®

, Mac

®

 mini, Mac Pro

®

, MacBook Air

®

, or MacBook Pro

®

with Thunderbolt technology to expand its capabilities in ways 
never before possible! With its Windows® support, the Echo 
Express SEL offers you a handy way to connect an expansion 
card to your desktop or laptop PC with Thunderbolt technology.

Mac Compatibility

• Mac computer with a Thunderbolt 2 or Thunderbolt port
• OS X

®

 10.8.5 or later

Windows Compatibility

• Windows PC with a Thunderbolt 2 or Thunderbolt port*
• Windows 8, 7

System Requirements

While the Echo Express SEL chassis requires no drivers, the 
expansion card you install does; Thunderbolt-compatible drivers 
to enable it to work properly through the Thunderbolt interface 
are required. More information on which cards are compatible 
with Echo Express SEL is available at: 
http://sonnettech.com/support/charts/thunderbolt/index.html

 
*  To support more than two PCIe controllers, Windows requires a 

Thunderbolt 2 interface in both the computer and the expansion 
chassis. Note that some PCIe cards have a bridge to multiple 
controllers, so it is possible for a single dual-controller PCIe card to 
reach the limit if not connected via Thunderbolt 2. Not all Mac-
compatible PCIe cards are also compatible with Windows.