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Sonnet Echo 20 Thunderbolt 4 SuperDock

BH #SOECHODK20T4 • MFR #ECHO-DK20-T4
12 reviews
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Sonnet Echo 20 Thunderbolt 4 SuperDock
Key Features
  • 1 x Thunderbolt 4 Port (100W Charging)
  • 2 x Thunderbolt 4 Port
  • 1 x M.2 SSD Slot
  • 1 x HDMI 2.1 Port
The Sonnet Echo 20 Thunderbolt 4 SuperDock utilizes Thunderbolt 4 to provide multiple ports and expansion options to your compatible computer with a single cable. Gain access to a variety of connections, such as Thunderbolt 4, USB 3.2 Gen 2, 2.5 GbE RJ45 LAN, 3.5mm audio jacks, and more. The HDMI 2.1 port allows you to connect an 8K @ 60 Hz display directly to the dock without the need for an adapter. There are also storage expansion options, such as the M.2 NVMe SSD slot and a SD 4.0 card reader.
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$299.99
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Sonnet Echo 20 Overview

The Sonnet Echo 20 Thunderbolt 4 SuperDock utilizes Thunderbolt 4 to provide multiple ports and expansion options to your compatible computer with a single cable. Gain access to a variety of connections, such as Thunderbolt 4, USB 3.2 Gen 2, 2.5 GbE RJ45 LAN, 3.5mm audio jacks, and more. The HDMI 2.1 port allows you to connect an 8K @ 60 Hz display directly to the dock without the need for an adapter. There are also storage expansion options, such as the M.2 NVMe SSD slot and a SD 4.0 card reader.
Front
Rear
HDMI 2.1, Thunderbolt 4, and USB 3.2 Gen 2
The built-in HDMI 2.1 port on the Echo 20 allows you to plug in an external display up to 8K @ 60 Hz directly. The Echo 20 also features three Thunderbolt 4 ports, one for connecting to your host device and the other two for directly connecting Thunderbolt peripherals and accessories. The two Thunderbolt 4 ports support USB4 and USB 3.2 devices and even provides up to 15W of power. Also available are four USB-A 3.2 Gen 2 and four USB-C 3.2 Gen 2 ports.

Please note that HDMI 2.1 is only supported in Windows.
2.5 Gb Ethernet
Featuring 2.5 Gigabit Ethernet, the Echo 20 supports a 2.5 Gb/s link speed over common Cat 5e (or better) cabling when used with a compatible Ethernet switch or NAS with 2.5Gb Ethernet support. This saves you the trouble of having to invest in an Ethernet adapter. Need to connect to a switch without 2.5Gb Ethernet support? The Sonnet dock can also supports 1 Gb/s and 100 Mb/s link speeds.
M.2 SSD Slot
The built-in M.2 NVMe SSD slot enables you to add up to 8TB of SSD storage (sold separately) to your system without having to connect a storage device to your Echo 20 or upgrading your computer. Installing the SSD is easy and straightforward. Simply remove the two screws securing a bottom panel cover, insert the SSD, and reinstall the bottom cover with the two screws. Transfer and access data at up to 800 MB/s, and effortlessly store large files, media libraries, or your Time Machine backups.
Thunderbolt Certified
The Echo 20 is certified for use with Apple M series Macs, Thunderbolt 3 Intel Macs, Thunderbolt 4 and USB4 Windows computers, Thunderbolt 3 Windows computers with an Intel 8th Gen (2018) or newer CPU, Thunderbolt 4 and USB4 Chromebook computers, and M series iPad Pro.
UPC: 732311013607

Sonnet Echo 20 Specs

Key Specs
USB I/O
3x USB-C (Thunderbolt 4)
4x USB-C 3.1/3.2 Gen 2 / Supports 7.5 W Output
4x USB-A 3.1/3.2 Gen 2
Video I/O
1x HDMI 2.1
Max Resolution
2 Displays Supported:
7680 x 4320 at 60 Hz (Single)
6016 x 3384 (Dual)
Audio I/O
1x 1/8" / 3.5 mm Headphone/Microphone Combo Jack
1x 1/8" / 3.5 mm Microphone Input
2x 1/8" / 3.5 mm Line-Out
Network I/O
1x RJ45 (2.5 GbE)
Host Connection
USB-C (Thunderbolt 4) up to 100 W via Detachable Cable
USB I/O
3x USB-C (Thunderbolt 4)
4x USB-C 3.1/3.2 Gen 2 / Supports 7.5 W Output
4x USB-A 3.1/3.2 Gen 2
Video I/O
1x HDMI 2.1
Max Resolution
2 Displays Supported:
7680 x 4320 at 60 Hz (Single)
6016 x 3384 (Dual)
Audio I/O
1x 1/8" / 3.5 mm Headphone/Microphone Combo Jack
1x 1/8" / 3.5 mm Microphone Input
2x 1/8" / 3.5 mm Line-Out
Network I/O
1x RJ45 (2.5 GbE)
Media Card Reader
1x SDXC (UHS-II [312 MB/s])
1x microSDXC
Host Connection
USB-C (Thunderbolt 4) up to 100 W via Detachable Cable
Power Source
Included AC Adapter with Barrel Connector: 100 to 240 VAC, 50/60 Hz (150 W)
Wireless Charging
No
Storage
1x M.2 Slot
OS Compatibility
Computer: macOS 11 to 13 / Windows 11 Only / Chrome OS
Mobile: iPadOS Only
Operating Conditions
32 to 95°F / 0 to 35°C
Lock Slot
Yes: Kensington
Certifications
CISPR 32 / EN 55032, FCC Part 15, Subpart B, IEC62368-1, IEC62368-2, PSE, RoHS 3 (Directive 2015/863), UL, VCCI-B
Cable Length
2.3' / 0.7 m
Dimensions
9.6 x 4.2 x 1.3" / 24.3 x 10.6 x 3.3 cm
Weight
3.33 lb / 1.51 kg
Packaging Info
Package Weight
3.54 lb
Box Dimensions (LxWxH)
12.9 x 6.6 x 2.8"

Sonnet Echo 20 Reviews

Overkill for many of us, but hey, gimmie the goods!

By Jarek
Rated 5 out of 5
Date: 2025-06-19

I recently relocated my MacPro workstation into another room next to my server, which I connected to via optical Thunderbolt 3. I decided to go one step further and just move everything there. Needing a way to connect my to my monitors and keyboard/mouse I figured Thunderbolt docks were the best option. I was initially using a simple Thunderbolt hub/splitter but soon figured I needed something with more options. My main reason was audio. I was using my Blackmagic 4k mini for my system audio, but it's not really designed for that. It works, but after a while the audio can get out of sync requiring to reboot the device. The Sonnet Echo 20 has RCA line out jacks on the back which was exactly what I needed. The sound quality is perfect when feeding into my mixer and monitors. I can also keep using the volume control on my keyboard, which the Blackmagic could not. Over all this thing handles the majority of my needs. Two 4 monitors, audio out, USB for mouse ,keyboard, printer and any random drives I may need to connect. Extra Thunderbolt and USB-C ports, HDMI. It's silent and even goes to sleep with my Mac. It get's slightly warm but that's expected. I keep a small silent USB fan on it all mounted under my desk. It really is the best dock out there. Oh yeah, there's also a NVME slot built in if you want that too!

Great Docking Station w/ Many Ports

By Nicholas V.
Rated 4 out of 5
Date: 2024-08-22

This is a great docking station that allows me to easily switch my monitor/external drive setup between my personal laptop and my work laptop. My only complaint is that it can get quite warm. Due to this I typically like to power down when not using my computer to allow it time to cool off.

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