Sonnet's Latest Thunderbolt 4 Dock Features Internal SSD Enclosure

Sonnet this week announced its latest Thunderbolt 4 dock, the Echo 20, and one of its key features is an internal enclosure for an M.2 NVMe SSD. This allows the dock to double as an external storage drive for a Mac.

Sonnet Echo 20 Thunderbolt 4 Dock
Accessible from the bottom of the dock, the enclosure can hold up to an 8TB SSD and supports data transfer speeds up to 800 MB/s, according to Sonnet.

The dock is also equipped with an upstream Thunderbolt 4 port that provides up to 100W of pass-through charging to a connected Mac, two downstream Thunderbolt 4 ports, four USB-C ports with up to 10 Gbps speeds, four USB-A ports with up to 10 Gbps speeds, one HDMI 2.1 port, one 2.5 Gigabit Ethernet port, one 3.5mm combo audio jack, one 3.5mm microphone jack, left and right RCA line out jacks, and one SD card slot.


The dock is designed for use with devices equipped with Thunderbolt ports, including all of Apple's latest Mac and iPad Pro models, providing expanded connectivity for external displays, USB accessories, and other peripherals.

The Echo 20 is available to order on Sonnet's website for $299.99 in the United States and will be available at additional retailers soon. The dock has an external power supply and ships with a 0.7-meter Thunderbolt 4 cable in the box. Sonnet has a similar Thunderbolt dock that supports dual SSDs for up to 16TB of storage, but it has fewer ports.

Popular Stories

2024 iPhone Boxes Feature

Apple Adjusts Trade-In Values for iPhones, iPads, Macs, and More

Thursday November 6, 2025 11:12 am PST by
Apple today updated its trade-in values for select iPhone, iPad, Mac, and Apple Watch models. Trade-ins can be completed on Apple's website, or at an Apple Store. The charts below provide an overview of Apple's current and previous trade-in values in the U.S., according to its website. Maximum values for most devices either decreased or saw no change, but the iPad Air received a slight bump. ...
Liquid Glass General Feature

Apple Shares Liquid Glass Design Gallery

Thursday November 6, 2025 2:45 pm PST by
Apple is promoting the new Liquid Glass design in iOS 26, showing off the ways that third-party developers are embracing the aesthetic in their apps. On its developer website, Apple is featuring a visual gallery that demonstrates how "teams of all sizes" are creating Liquid Glass experiences. The gallery features examples of Liquid Glass in apps for iPhone, iPad, Apple Watch, and Mac. Apple...
airtag purple

Apple's Website Lists AirTag 4-Pack at Shockingly Low Price [Updated]

Friday November 7, 2025 6:40 am PST by
Apple's online store in the U.S. is suddenly offering a pack of four AirTags for just $29, which is the same price as a single AirTag. This is likely a pricing error, and it is unclear if orders will be fulfilled. Apple has not discounted the AirTag four-pack in any other countries that we checked. Delivery estimates are already pushing into late November to early December, suggesting...
iOS 26

iOS 26.1 Available Now With These 8 New Features

Monday November 3, 2025 5:54 am PST by
Following more than a month of beta testing, Apple released iOS 26.1 on Monday, November 3. The update includes a handful of new features and changes, including the ability to adjust the look of Liquid Glass and more. Below, we outline iOS 26.1's key new features. Liquid Glass Toggle iOS 26.1 lets you choose your preferred look for Liquid Glass. In the Settings app, under Display...
ikea smart home devices

IKEA Debuts 21 HomeKit-Compatible Smart Bulbs, Sensors, and Controls

Thursday November 6, 2025 4:08 pm PST by
IKEA today announced the upcoming launch of 21 new Matter-compatible smart home products that will be able to interface with HomeKit and the Apple Home app. There are sensors, lights, and control options, all of which will be reasonably priced. Some of the products are new, while some are updates to existing lines that IKEA previously offered. There are a series of new smart bulbs that are...
Early Black Friday Deals 1

The Best Early Black Friday Apple Deals on MacBook, Apple Watch, iPad, and More

Saturday November 8, 2025 6:16 am PST by
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When ...
Apple fitness plus feature

Future of Apple Fitness+ 'Under Review'

Sunday November 9, 2025 5:30 am PST by
The future of Apple Fitness+ is "under review" amid a reorganization of the service, according to Bloomberg's Mark Gurman. In the latest edition of his "Power On" newsletter, Gurman said that Apple Fitness+ remains one of the company's "weakest digital offerings." The service apparently suffers from high churn and little revenue. Nevertheless, Fitness+ has a small, loyal fanbase that...
maxresdefault

In-Depth iPhone Battery Experiment Pits Slow Charging Against Fast Charging

Friday November 7, 2025 1:19 pm PST by
HTX Studio this week shared the results from a six-month battery test that compared how fast charging and slow charging can affect battery life over time. Using six iPhone 12 models, the channel set up a system to drain the batteries from five percent and charge them to 100 percent over and over again. Three were fast charged, and three were slow charged. Another set of iPhones underwent...
apple watch se 3 always on

Apple to Remove iPhone-Apple Watch Wi-Fi Sync in EU With iOS 26.2

Thursday November 6, 2025 4:37 am PST by
Apple in iOS 26.2 will disable automatic Wi-Fi network syncing between iPhone and Apple Watch in the European Union to comply with the bloc's regulations, suggests a new report. Normally, when an iPhone connects to a new Wi-Fi network, it automatically shares the network credentials with the paired Apple Watch. This allows the watch to connect to the same network independently – for...

Top Rated Comments

tan.shu Avatar
31 months ago
why only 800 MB/s?
Score: 20 Votes (Like | Disagree)
Rychiar Avatar
31 months ago
ya lost me at 800mbps:confused: who would pay for that? my current external NVME gets 3000+ mb/s. like why even be thunderbolt 4 and cap it there...
Score: 12 Votes (Like | Disagree)
6787872 Avatar
31 months ago
would this gracefully be able to eject or require manual ejection every time you want to unplug from the dock?
Score: 7 Votes (Like | Disagree)
bradman83 Avatar
31 months ago

why only 800 MB/s?
I would venture a guess it’s because it has to share bandwidth with other functions of the dock (display bandwidth especially), whereas a dedicated Thunderbolt enclosure has that 40 Gbps all to itself.
Score: 7 Votes (Like | Disagree)
wesley96 Avatar
31 months ago
It is likely that this product’s controller chip is dedicating one of the four PCIe lanes available for Thunderbolt 3 / 4 connectivity to the SSD slot. TB3/4 is effectively an externalized PCIe 3.0 x 4, with each lane providing 10Gbps bandwidth. Since there are several protocol overheads including 8b/10b encoding for data, it’s easy to see the 10Gbps dwindle to 800MB/s max throughout.

BTW, the tech specs say that it uses the M.2 NVME SSDs, not the MSATA variety. so the limit is not due to SATA3’s 6Gbps max bandwidth. The SSDs using that standard maxes out at ~550MB/a anyway.
Score: 6 Votes (Like | Disagree)
pmasters Avatar
31 months ago
$300 is way overpriced, especially for the weak ass speeds.
Score: 6 Votes (Like | Disagree)