Sonnet Echo Express III D

Connect Three Full-Length PCIe Cards to any Computer with a Thunderbolt 3 Port

For pros working in the creative fields, a computer’s processing power alone is not enough to get the job done. A prime example is the latest MacBook Pro®, which, while offering great performance, lacks the PCIe expansion slots necessary to support specialty cards that connect pro video and audio inputs, transcode data, and connect to high-speed storage and networks. Instead of slots, these computers include high-performance Thunderbolt™ 3 ports to support peripherals. Sonnet’s Echo™ Express III-D (Thunderbolt 3 Edition) leverages the Thunderbolt 3 ports’ PCIe data to connect PCIe expansion slots outside of a computer. This powerful desktop Thunderbolt-to-PCIe card expansion system 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 III-D (Thunderbolt 3 Edition) 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.

Three PCIe 3.0 Slots, No Compromise

Sonnet’s Echo Express III-D supports three full-size PCIe cards, up to 12.28 inches (full-length) long. The III-D integrates a universal 300W power supply and includes a 75W PCIe power connector for cards that require supplementary power, such as the RED® ROCKET-X.

Even with all that power, the III-D is enviro-friendly; it automatically powers on or off whenever the connected computer powers on (or wakes), or powers off or sleeps, respectively.

40Gbps Thunderbolt 3 —
The USB-C That Does It All

The Echo Express III-D (Thunderbolt 3 Edition) includes two Thunderbolt 3 ports; the first is used for connection to your computer, while the second supports daisy chaining of up to five additional Thunderbolt peripheral devices to a single port on your computer⁽⁴⁾. The III-D includes 10Gbps USB 3.1 Gen 2 support, meaning you can connect a USB device to the second port using the proper cable or adapter. The III-D also provides full support for connecting two 4K displays @ 60Hz or one 5K display @ 60Hz⁽³⁾. For connected peripherals requiring extra power, 15 watts is provided to connected bus-powered devices.

All-Around Smart Design

The Echo Express III-D is wrapped in a rugged, yet lightweight aluminum outer shell, resulting in a system light enough to carry without weighing you down, yet sturdy enough to securely protect the installed PCIe cards.

Quiet Operator

In operation, the Echo Express III-D is remarkably quiet—it may be comfortably used in noise-sensitive environments, and it is one of the quietest Echo systems. The natural convection of warm air through the PCIe cards is assisted by ultra-quiet, temperature-controlled, variable-speed fans, and vented out the top of the chassis with reduced air velocity and turbulence, resulting in little fan noise.

Every Thunderbolt 3 Compatible, Non-GPU Card Supported

The Echo Express III-D supports three single-width, full-length PCIe cards, or one double-width, full-length card plus one single-width card, enabling it to support every Thunderbolt 3 compatible, non-GPU PCIe 1.1, PCIe 2.0, and PCIe 3.0 card available.

RED ROCKET Supporter

Sonnet designed the Echo Express III-D to accommodate the RED ROCKET or RED ROCKET-X and its BNC connector bracket (for HD-SDI output) card/bracket pair in a single slot.

Designed for BNC Connector Cables

Echo Express III-D’s back panel has two BNC connector mounting holes, enabling the use of a RED ROCKET card without the need to install the BNC connector bracket that would normally occupy a valuable PCIe slot.

Connect computer to one port on the Echo Express III-D (Thunderbolt 3 Edition) and daisy chain up to 5 additional Thunderbolt devices
(plus two 4K monitors, one 5K display, or one USB 3.1 device)

Tech Specs

• Number of Ports:3 x PCIe Card Slots
• Connection Type:2 x USB-C (Thunderbolt 3)
• Powered:Active
• Power Source:Standard IEC AC cable
• Dimensions:3.8" x 16" x 10.2"
• Manufacturer Part Number:ECHO-EXP3FD-TB3