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Sonnet Echo Express SE III

$931.00 $895.00 Inc. GST (Call for a Quote!)

A compact desktop Thunderbolt™ 3 to PCIe Card Expansion System that enables you to connect three professional PCIe cards—including video capture, audio interface, SAS / SATA / Fibre / 10GbE HBA, and RAID controllers—at the same time to any computer with Thunderbolt 3 ports.

SKU: ECHO-EXP-SE3-T3 Categories: , Tag:

Echo Express SE III

A compact desktop Thunderbolt™ 3 to PCIe Card Expansion System that enables you to connect three professional PCIe cards—including video capture, audio interface, SAS / SATA / Fibre / 10GbE HBA, and RAID controllers—at the same time to any computer with Thunderbolt 3 ports.


Sonnet’s Echo™ Express SE III is a compact desktop Thunderbolt™ 3 to PCIe Card Expansion System that enables you to connect three professional PCIe cards—including video capture, audio interface, SAS or SATA HBA, 16Gb or 8Gb Fibre Channel, 10 Gigabit Ethernet, and RAID controllers—at the same time to any computer with Thunderbolt 3 ports.

The Echo Express SE III features a 40Gbps Thunderbolt 3 interface, which offers double the PCIe bandwidth and connectivity of Thunderbolt 2, and yields up to 2750 MB/s of bandwidth, enabling it to support 4K video capture and processing cards at high frame rates, and 16Gb FC cards and dual-port 10GbE cards at full performance(1)(2). With the ability to handle multiple demanding, high performance PCIe cards, support for connecting two 4K displays @ 60Hz or one 5K display @ 60Hz(3), and support for a vast array of Thunderbolt(4) and USB(5) devices, Thunderbolt 3 is a leap forward in every way.

Key Features

  • Connects Three PCIe Cards to any Computer with Thunderbolt 3 Ports—Use multiple high-performance PCIe cards at the same time
  • Three PCIe 3.0 Slots—Supports three full-height, half-length+ (up to 7.75 inches long), single-width cards, or one double-width card plus one single-width card
  • 40Gbps Thunderbolt 3 Interface—Offers 2750 MB/s of PCIe bandwidth, doubling the performance of Thunderbolt 2
  • Two Thunderbolt 3 Ports—One port reserved for connection to the computer; second port supports daisy-chaining of up to five additional Thunderbolt(4) devices to your computer, attaching a single USB(5) peripheral device, or connecting up to two 4K displays or one 5K display(3)
  • Temperature-controlled Fan—Automatically operates slower and quieter with cooler cards; provides better cooling for hotter cards
  • Energy Saver Mode—Powers on/off automatically with the computer
  • Rugged Aluminium Housing—Provides robust and secure protection
  • Power for Peripherals—Provides up to 15W of power to connected peripherals
  • Nearly Every Thunderbolt 3 Compatible Card Supported—Works with every Thunderbolt 3 compatible PCIe card up to 7.75 inches in length
  • Thunderbolt 3 Cable & ThunderLok 3 Included—Includes 0.5-meter Thunderbolt 3 (40Gbps) cable and ThunderLok 3 Thunderbolt connector retainer clip to secure cable from accidental disconnections

Three PCIe Slots

The Echo Express SE III’s PCIe 3.0 x8 slots support three half-length+, full-height, single-width PCIe cards, or one single-width card plus one double-width card.

Double-width?

Some speciality cards, such as RME’s HDSPe MADI FX, Blackmagic Design’s DeckLink 4K Extreme, and the Lynx AES16e 50, include a daughter card that mates with and provides additional external connections to the main card.

Thunderbolt 3 — The USB C That Does It All

The Echo Express SE III 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 SE III includes 10Gbps USB 3.1 Gen 2 support, meaning you can connect a USB device to the second port using the proper cable or adaptor. The SE III also provides full support for connecting two 4K displays @ 60Hz or one 5K display @ 60Hz(4). For connected peripherals requiring extra power, 15 watts is provided to connected bus-powered devices.

Design Smarts

The inside of the Echo Express SE III is wrapped in a rugged, yet lightweight aluminium outer shell, resulting in a lightweight system small enough to carry in your backpack, yet durable enough to protect the installed PCIe cards securely. The enclosure is ventilated front and back to facilitate airflow over the cards, pushed by a large, quiet, temperature-controlled fan to efficiently cool the system, automatically speeding up and slowing down smoothly as needed—there’s no guesswork in deciding which fan speed to select. Because Sonnet 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.


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