Echo Express SEL

Compact, Desktop 1-slot Thunderbolt to PCIe Card Expansion System for Computers with Thunderbolt Ports

Connect a Low-profile PCIe Card

The latest ultra-light notebooks, small form factor, and all-in-one Mac, Windows and Linux computers with Thunderbolt™ ports are incredibly thin, but they lack PCIe card slots for upgrades. So, what if you want to add video capture, processing, or connectivity capabilities to your computer? Sonnet has the solution with Echo™ Express SEL. This compact desktop Thunderbolt™ expansion system lets you connect a low-profile PCIe card to your computer. Using a single Thunderbolt cable, it’s compatible with Apple M series Macs or Intel Macs with Thunderbolt 3 ports, as well as Windows or Linux computers with Thunderbolt 5 or Thunderbolt 4 ports.

The Thunderbolt Interface Connection

Small and Mighty – when connected to one of your computer’s Thunderbolt ports, Echo Express SEL allows you to connect a  low-profile PCIe card, such as Fibre Channel, Ethernet, video capture and processing, SAS and SATA host bus adapter, or a RAID controller.

Nearly Every Thunderbolt-compatible, Low-profile PCIe Card Supported

Echo Express SEL accommodates a wide variety of PCIe cards. Do you have a card in mind but aren’t sure it’s compatible? We’ve put together a compatibility list that identifies cards conforming to Thunderbolt technology requirements, and organized by fit and power compatibility with specific expansion systems.

Smart Design, Inside and Out

Aluminum Enclosure. Auto Power On/Off.

Designed for Low-profile PCIe Cards

Echo Express SEL supports one half-length (up to 6.6 inches long), low-profile, single-width PCIe card; PCIe 4.0, 3.0, 2.0, and 1.1 PCIe 4.0 cards are supported. Many of the most popular Thunderbolt-compatible high-speed networking and storage controller cards are a perfect fit, and even the BlueFish 444 Epoch 4K Neutron video card can be accommodated.

Quiet Please

Secure Connections for High Performance

Thunderbolt Cable and ThunderLok Included

Thunderbolt Technology

Fastest External Interface Available

Sonnet Thunderbolt products feature a high-speed Thunderbolt interface that delivers PCIe bandwidth needed to support data transfers at full speed.

Designed for the Fastest Connection to Thunderbolt Computers

Echo Express SE I is purposely designed with a Thunderbolt 3 controller and its four lanes of PCIe (not available in a Thunderbolt 4 peripheral) to achieve maximum simultaneous ingest speeds. Watch this video to learn more about the performance benefits.