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Connect Three Full-Length PCIe Cards to Any Mac 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 ultra high-performance Thunderbolt 3 ports to support peripherals. Sonnet’s Echo™ Express III-R - Thunderbolt 3 Edition leverages the Thunderbolt 3 ports’ PCIe data to connect PCIe expansion slots outside of a computer. This desktop Thunderbolt-to-PCIe card expansion chassis 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 Mac with a Thunderbolt 3 port.

The Echo Express III-R - 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 highest 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-R - Thunderbolt 3 Edition supports three full-size PCIe cards up to 12.28 inches (full-length) long. The III-R integrates a universal 300W power supply and includes a 75W PCIe power connector for cards that require supplementary power such as the Avid® Pro ToolsHDX or the RED® ROCKET-X.

Even with all that power the III-R 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-R - Thunderbolt 3 Edition includes two Thunderbolt 3 (USB-C) 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-R 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-R also provides full support for connecting two 4K displays @ 60Hz or one 5K display @ 60Hz(3). For connected devices requiring extra power 15 watts is provided to connected bus-powered devices.

All-Around Smart Design

The Echo Express III-R - Thunderbolt 3 Edition’s enclosure is formed of heavy-duty steel to provide secure mounting for the inner assembly and protection for the PCIe cards installed inside and to support maximum airflow for cooling regardless of where you install it in a rack.

Its two large slow-spinning fans enhanced with computer-modeled airflow management ensure that even hot-running cards remain reliably cool without the need to install an extra PCIe blower card that would prevent the use of one of the three slots. Because the fans automatically speed up and slow down as needed you don’t have to guess which speed setting to select and there’s no need for tools to change settings. There is no power switch on the chassis nor is one needed because the III-R automatically powers on and off with your computer.

The III-R’s adjustable rackmount extension rails enable the chassis to be installed securely in a variety of racks from 16 to 24 inches deep (optional extra-long extension rails that support installation in racks up to 32.5 deep are also available). Captive thumbscrews secure the inner assembly enabling you to secure release and slide it out without the need of tools. Using an optional Mobile Rack Device Mounting Kit you can install two 5.25-inch mobile rack devices (sold separately) in the III-R's enclosure without taking up additional rack space.

Quiet Operator

The Echo Express III-R - Thunderbolt 3 Edition’s operation is remarkably quiet—comfortably used in noise-sensitive environments 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 of the chassis with reduced air velocity and turbulence resulting in little fan noise.

Every Thunderbolt 3 and MacOS Compatible PCIe Card Supported

The Echo Express III-D - Thunderbolt 3 Edition 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- and macOS-compatible PCIe 1.1 PCIe 2.0 and PCIe 3.0 card available.

RED ROCKET Supporter

Sonnet designed the Echo Express III-R - Thunderbolt 3 Edition 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. This Echo chassis includes two BNC connector mounting holes enabling the installation of the card in one slot and its BNC connectors in the chassis’ mounting holes leaving the two remaining slots open.

Designed for BNC Connector Cables

Echo Express III-R’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.

Thunderbolt 3 (40Gbps) Cable Included

To connect the Echo Express III-R - Thunderbolt 3 Edition to your computer Sonnet includes a 1.0-meter Thunderbolt 3 (40Gbps) cable.

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