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Echo 20 Thunderbolt 4 SuperDock

For Release: June 28, 2023

For more information, please contact:

Martin Muggee
Marketing Communications Manager


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  IRVINE, Calif. — June 28, 2023

Sonnet Announces Echo™ 20 Thunderbolt™ 4 SuperDock

Leading Price Full-Featured Docking Station Features Three Thunderbolt 4 Ports and One Internal M.2 NVMe SSD Socket; Provides Up to 100 Watts Charging Power to Laptop Computers, HDMI Display and 2.5Gb Ethernet Support

What’s New:
Sonnet Technologies today announced the Echo™ 20 Thunderbolt™ 4 SuperDock, the latest and top offering in the company’s popular Echo family of docking stations. The Echo 20 features three Thunderbolt 4 ports, one internal M.2 NVMe SSD socket, four USB 3.2 Gen 2 (10Gbps) Type-C Charging ports, four USB 3.2 Gen 2 (10Gbps) Type A ports, one HDMI 2.1 port, one 2.5 Gigabit Ethernet (RJ45) port, one 3.5 mm combo audio port, two analog line level output jacks, one 3.5 mm microphone jack, and one SD™ 4.0 card slot. The Sonnet dock is compatible with Apple® M series Mac® computers; Thunderbolt™ 3 Intel® Mac computers; Thunderbolt 4 and USB4® Windows® computers; late-model Thunderbolt 3 Windows computers; Thunderbolt 4 and USB4 Chromebook computers; and M series iPad Pro® tablets.

What It Does:
Thunderbolt docking stations enable users to conveniently connect their computer peripherals — such as storage devices, input devices, headphones, etc. — to a convenient central point instead of directly to their computer. The Sonnet Echo 20 Thunderbolt 4 SuperDock connects all of those peripheral devices — including an HDMI monitor — through a single Thunderbolt cable (which can also charge laptop computers with up to 100 watts of power). The Echo 20 also supports the installation of one M.2 NVMe SSD inside the case. The Echo dock supports connecting one 8K or two 6K monitors (subject to the computer’s display support).

Why It’s Important:
Many recent laptop computers include fewer peripheral ports and port types than those of the past, some with as few as two ports — with one sometimes also used for charging — thus limiting the number of devices that can be plugged in directly. The Echo 20 Thunderbolt 4 SuperDock bypasses these limitations by making up to 20 connections, charging the computer, supporting fast wired network connectivity, and reading SD memory cards. With its mix of peripheral ports, the Echo dock connects a vast array of devices and supports high-performance peripherals with ease.

How It’s Distinctive:
The Echo 20 Thunderbolt 4 SuperDock includes several distinctive features:

• Built-in M.2 NVMe SSD Socket
This enables users to install up to 8TB of storage without connecting an external storage device to the Echo dock or to the computer. With data transfers up to 800 MB/s, the internal storage is ideal for many uses, including media storage and Time Machine® backups.

• HDMI 2.1 Port
Connects an 8K @60Hz HDMI display directly with no adapter required.

• 2.5Gb Ethernet Port
When connected to a compatible switch or NAS, 2.5GbE connectivity delivers faster data transfers over existing cabling with no adapter needed. It is also backward-compatible with a Gigabit Ethernet infrastructure.

• Eight USB 3.2 Gen 2 (10Gbps) Ports
Includes two each USB-A and USB-C ports on both the front and the back panels. The Sonnet dock’s eight USB 3 ports boost power to ensure that bus-powered SSDs with higher peak power requirements mount and operate reliably. The USB-C ports support the Type-C Charging spec, enabling the dock to charge devices even when the computer is off, sleeping, or disconnected.

• More Audio I/O Ports
Includes a 3.5 mm TRRS headset jack on the front panel, plus a 3.5 mm microphone jack on the back panel. Separate left and right channel RCA output jacks provide line level output to powered speakers or an amplifier and avoid clipping and distortion that can occur when using a headphone jack as the source.

• Rear Panel Computer/Charging (Thunderbolt 4) Port
Placing the computer interface/charging port on the back panel fulfills a frequent customer request and allows for easier cable management.

• Two Thunderbolt 4 Peripheral Ports
Support both Thunderbolt and USB peripherals — including displays — and provide up to 15 watts power each. When used with self-powered Thunderbolt devices, the ports support up to five devices via daisy chain connection.

• ThunderLok Support
Like Sonnet Thunderbolt-to-PCIe® card expansion systems, the Echo 20 dock includes a threaded nut to secure the included Sonnet ThunderLok 4 Thunderbolt connector retainer clip that prevents accidental cable disconnections.

• Great Value
The Echo 20 Thunderbolt 4 SuperDock offers more features and sells for 25% less than its closest competitor’s Thunderbolt 4 dock.

When You Can Get It:
The Echo 20 Thunderbolt 4 SuperDock (part number ECHO-DK20-T4) is available now from Sonnet and soon from its worldwide distribution and reseller partners at the suggested retail price of $299.99.

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About Sonnet Technologies
Sonnet Technologies, Inc. is a leading provider of Thunderbolt™ technology products and network, storage, and other interface cards for pro users in the audio, video, and broadcast industries. Sonnet’s array of Thunderbolt products includes a broad variety of docks, pro media readers, and network interface and display adapters, plus PCIe® card expansion systems that enable the use of pro audio I/O and DSP cards, pro video capture and transcoding cards, GPU cards, and other high-performance PCIe cards with computers with Thunderbolt ports. Due to Sonnet’s Thunderbolt Technology expertise, it has become a leading designer/manufacturer of ODM boards which enable the integration of Thunderbolt ports into third-party products. For 35 years Sonnet has pioneered and brought to market numerous innovative and award-winning products that enhance the performance and connectivity of Mac®, Windows®, and Linux® computers. More information is available at

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