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Echo Express SEL
€ 289.00
Echo Express SEL (Thunderbolt 3 Edition)
1-slot Desktop Thunderbolt 3 Expansion System for Low-profile PCIe Cards
Connect a Low-profile PCIe Card to Computers with Thunderbolt 3 Ports
Description
Echo Express SEL (Thunderbolt 3 Edition)
1-slot Desktop Thunderbolt 3 Expansion System for Low-profile PCIe Cards
Connect a Low-profile PCIe Card to Computers with Thunderbolt 3 Ports
Shopping for a new computer? The latest ultra-light notebooks, small form factor and all-in-one Mac®, Windows®(1), and Linux® computers with Thunderbolt™ 3 ports are slender marvels of engineering that come with a cost—there’s nowhere to install PCIe cards that provide additional connectivity and processing capabilities. Sonnet’s Echo™ Express SEL (Thunderbolt 3 Edition) is a compact, desktop Thunderbolt™ 3 to PCIe card expansion system that enables you to connect a low-profile PCIe card to any computer with Thunderbolt 3 ports.
The Thunderbolt 3 Connection
Through its x8 PCIe 3.0 slot, this little expansion system supports many low-profile PCIe cards (Thunderbolt-compatible 16Gb and 8Gb Fibre Channel, 40Gb and 10Gb Ethernet, video capture and processing, SAS and SATA host bus adapters, and RAID controllers) and connects it to your computer through a single Thunderbolt 3 cable.
Key Features
Use high-performance PCIe cards with any computer with a Thunderbolt 3 port.
Supports one low-profile PCIe card.
Offers 2750 MB/s of PCIe bandwidth, doubling the performance of Thunderbolt 2.
Smallest Thunderbolt 3 to PCIe card expansion system available; supports the most popular low-profile, Thunderbolt-compatible PCIe cards at full performance.
One port connects to computer; second port supports daisy-chaining of up to five additional Thunderbolt peripheral devices.
Temperature-controlled, variable-speed fan automatically and quietly cools the card.
Powers on/off automatically with the computer.
Provides robust and secure protection.
Daisy chain port provides up to 15W of power to connected peripherals.
Nearly Every Thunderbolt-compatible, Low-profile PCIe Card Supported
The 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 list in our supporting PCIe Card Thunderbolt Compatibility Chart (PDF). There you’ll find cards identified as conforming to Thunderbolt technology requirements, and organized by fit and power compatibility with specific expansion system.
Smart Design, Inside and Out
Aluminum Enclosure. Auto Power On/Off.
With a shell crafted of rugged and lightweight aluminum, Echo Express SEL securely houses the installed PCIe card. Inside, the card is protected through the use of a variable-speed, temperature-controlled fan which ensures the card and chassis’ components remain reliably cool. The fan automatically speeds up as necessary to cool the card when it’s hot, and slows down when it’s cool. Since Echo Express products automatically power on and off with your computer, there is no power switch on the chassis, ensuring you don’t waste energy by forgetting to turn it 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 1.1, PCIe 2.0, and PCIe 3.0 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
Echo Express SEL is designed to be ultra-quiet so that it can be comfortably used in noise-sensitive environments. The airflow path within the chassis has been specially designed to enable the fan to quietly and efficiently cool the installed card at all times, even during peak operation.

Included at No Extra Charge
Thunderbolt 3 Cable. ThunderLok 3.
Sonnet includes a 0.7-meter Thunderbolt 3 (40Gbps) cable that supports Thunderbolt 3’s full 2750 MB/s PCIe bandwidth. Sonnet also provides a ThunderLok 3 Thunderbolt connector retainer clip that prevents accidental cable disconnections—just slide it over one end of the cable, and then plug in the connector and secure it to the chassis by turning a thumbscrew. Because of its unique design, ThunderLok remains on the cable so it won’t get lost when not in use.
Fastest External Interface Available
Thunderbolt 3 –
The USB-C That Does It All
Echo Express SEL (Thunderbolt 3 Edition) includes two Thunderbolt 3 ports; the first connects it to your computer, while the second supports daisy chaining of up to five additional Thunderbolt peripheral devices to a single port on your computer. The SEL also includes 10Gbps USB 3.2 Gen 2 support, meaning you can connect a USB device to the second port using the proper cable or adapter. For your connected peripherals requiring extra power, 15 watts is provided to connected bus-powered devices. With the ability to handle multiple demanding, high performance PCIe cards, support for connecting two 4K displays @ 60Hz or one 5K display @ 60Hz, and support for a vast array of Thunderbolt and USB devices, Thunderbolt 3 is a leap forward in every way.
BLAZING PERFORMANCE
Up to Twice the Performance of Thunderbolt 2
Connect computer to one port on the Echo Express SEL (Thunderbolt 3 Edition) and daisy chain up to 5 additional Thunderbolt devices (plus two 4K monitors, one 5K display, or one USB 3.0 device)
Additional information
Weight | 840 g |
---|---|
Dimensions | 10.3 × 21.0 × 7.3 cm |
Form Factor | |
Warranty | |
External Connectors | 2x Thunderbolt 3 ports |
Expansion Slot | One x8 PCIe 3.0 slot |
PCIe Cards Supported | 1x low-profile PCIe card |
In The Box | Echo Express SEL (Thunderbolt 3 Edition) |
OS | Mac Compatibility Mac (Intel®) with Thunderbolt 3 ports Windows Compatibility(1) PC with Thunderbolt 3 ports Linux Compatibility Linux® computer with Thunderbolt 3 ports |
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