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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.
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.
See any errors on this page?
will it drive an Apple outboard USB superdrive ...
will it drive an Apple outboard USB superdrive that i purchased for a mac mini about 5 years ago ago.and never used?
Asked by: Stephen
Yes, the Sonnet Echo 20 Thunderbolt 4 SuperDock can work with an Apple USB Superdrive.
Answered by: Calvin M
Date published: 2023-08-07
Will this hub connect to a mac Pro 6,1 ...
Will this hub connect to a mac Pro 6,1 thunderbolt 2 port with an apple thunderbolt adapter?
Asked by: Steven
The Sonnet Echo 20 Thunderbolt 4 SuperDock, B&H # SOECHODK20T4, does not support Thunderbolt 2 ports, it must be connected directly to a Thunderbolt 3 or 4 port.
Answered by: Miguel M
Date published: 2024-01-14
Hi just wondering is this hub USB ...
Hi just wondering is this hub USB graphics-enabled feature (allowing connect to13" MacbookAir M2 to support 2external monitors?)
Asked by: philip
The Sonnet Echo 20 Thunderbolt 4 SuperDock would only support on display when paired with your MacBook Air M2 laptop.
Answered by: Paige K
Date published: 2023-10-10
Do I need an active cable to run one 4K monitor? ...
Do I need an active cable to run one 4K monitor? What about two 4k monitors and hard drives?
Asked by: Alan
The Sonnet Echo 20 Thunderbolt 4 SuperDock has a single HDMI 2.1 output, which will work with any HDMI 2.1 cable to send a 4K video signal to a monitor. You could then use one of the three Thunderbolt 4 ports to send a second 4K signal to the second monitor so long as it has a USB-C, HDMI, or DisplayPort input. Hard drives can also be connected to the Sonnet Echo 20 Thunderbolt 4 SuperDock via Thunderbolt cables, USB-C cables, or USB-A cables.
