Hands-On With Sonnet's DuoModo Modular Desktop Enclosures and eGPU

Sonnet in June announced a new DuoModo series of mix and match modular Thunderbolt expansion options both for the desktop and for rack installation, and we thought we'd take a hands-on look at the new offerings for MacRumors readers who are looking to power up their desktops.


There are three interchangeable expansion modules that are part of the DuoModo line, including a three-slot PCIe card system, an eGPU card system, and a Mac mini mounting system with an integrated Thunderbolt storage dock, plus a series of enclosures. Since these are mix and match you can pick and choose, but Sonnet also offers a few preconfigured options.

The DuoModo Echo III includes one x16 and two x8 PCIe slots that connect to a Mac's Thunderbolt port, along with a 400W power supply and a 75W auxiliary power connector for cards that require additional power.

Sonnet's DuoModo eGPU Module, which is what most MacRumors readers may be interested in, supports full-length, full-height 2.5-slot width GPU cards, and it has built-in variable-speed fans for cooling purposes. It's future proof with an 800W power supply. We used an AMD Radeon 6800 in the eGPU with an Intel ‌Mac mini‌ and saw OpenCL and Metal scores of 97499 and 132543, respectively, vastly outperforming the 4561 OpenCL and 4522 Metal scores from the integrated Graphics 630 card.

There's also a DuoModo xMac mini Module that holds an Intel or M1 ‌Mac mini‌ and allows it to be mounted in an enclosure. There's a built-in Thunderbolt 3 storage dock with two 10Gb/s USB-C ports, one USB-A port, and one 40Gb/s Thunderbolt 3 port. It also has two M.2 NVMe PCIe SSD sockets to let users add up to 16TB of storage.

These modules can go in one of Sonnet's enclosures, such as the Dual-Module Desktop Enclosure. Sonnet's dual enclosure holds any two of the DuoModo modules, and there's also a single-module option.

Sonnet's DuoModo system is comprehensive, versatile, and easy to use for those who need professional expansion options. Make sure to check out our video up above to see the DuoModo in action.

Tag: Sonnet

Popular Stories

imac video apple feature

Apple Unveils First New Products of 2026

Monday January 26, 2026 1:55 pm PST by
Apple today introduced its first two physical products of 2026: a second-generation AirTag and the Black Unity Connection Braided Solo Loop for the Apple Watch. Read our coverage of each announcement to learn more:Apple Unveils New AirTag With Longer Range, Louder Speaker, and More Apple Introduces New Black Unity Apple Watch BandBoth the new AirTag and the Black Unity Connection Braided...
Apple Logo Black

Apple Just Made Its Second-Biggest Acquisition Ever After Beats

Thursday January 29, 2026 10:07 am PST by
Apple today confirmed to Reuters that it has acquired Q.ai, an Israeli startup that is working on artificial intelligence technology for audio. Apple paid close to $2 billion for Q.ai, according to sources cited by the Financial Times. That would make this Apple's second-biggest acquisition ever, after it paid $3 billion for the popular headphone and audio brand Beats in 2014. Q.ai has...
iPhone 5s

iPhone 5s Gets New Software Update 13 Years After Launch

Monday January 26, 2026 3:56 pm PST by
Alongside iOS 26.2.1, Apple today released an updated version of iOS 12 for devices that are still running that operating system update, eight years after the software was first released. iOS 12.5.8 is available for the iPhone 5s and the iPhone 6, meaning Apple is continuing to support these devices for 13 and 12 years after launch, respectively. The iPhone 5s came out in September 2013,...
Apple Creator Studio

Apple's Next Launch is Today

Tuesday January 27, 2026 2:39 pm PST by
Update: Apple Creator Studio is now available. Apple Creator Studio launches this Wednesday, January 28. The all-in-one subscription provides access to the Final Cut Pro, Logic Pro, Pixelmator Pro, Motion, Compressor, and MainStage apps, with U.S. pricing set at $12.99 per month or $129 per year. A subscription to Apple Creator Studio also unlocks "intelligent features" and "premium...
Apple Event Logo

Apple Teases 'Innovations That Have Never Been Seen Before' This Year

Friday January 30, 2026 5:40 am PST by
Apple CEO Tim Cook believes that his company will have opportunities to deliver "innovations that have never been seen before" this year. "As I said at the beginning of my remarks, this was, in so many ways, a remarkable quarter for Apple, and we're excited for all the opportunities we'll have in the year ahead to deliver innovations that have never been seen before and enrich the lives of...

Top Rated Comments

ratspg Avatar
59 months ago

kinda pointless for m1 owners.
Would be awesome if it worked with my M1 Macs. Lol. Wishful thinking.
Score: 6 Votes (Like | Disagree)
mdriftmeyer Avatar
59 months ago

Do these companies continuing to develop EGPU know something we don't about apple's future plans with thunderbolt (maybe M2 eGPU compatibility?) or are they basically just developing these for the PC market and what remains of the legacy intel macs?

It really doesn't make sense to me to keep releasing these products with the apparent depreciation of eGPU thunderbolt support.
With millions of non-M series Macs you see this as pointless?
Score: 5 Votes (Like | Disagree)
ilikewhey Avatar
59 months ago
kinda pointless for m1 owners.
Score: 4 Votes (Like | Disagree)
InuNacho Avatar
59 months ago

eGPU is one of the biggest failed attempts in Apple history. The enclosure is expensive, the cards are expensive, compatibility is not universal and in the end the performance is much less than a directly connected GPU.

Who needs or wants such a setup? Just buy a PC or Mac Pro. The price of the enclosure+GPU is probably nearing enough to build a better dedicated PC.
Given the price difference between the 2018 i7 Mac Mini and the lowest end 2019 Mac Pro is $4700, this is a pretty good stop gap for the semi-pro/pro that needs some but not all of what the Mac Pro offers.
Gotta love the ole' Macrumors "I don't get it therefore nobody wants or needs it".
Score: 4 Votes (Like | Disagree)
Aggedor Avatar
59 months ago

Not sure why you mention the M1 in this post, this is just going to cause trouble for a lot of people who don't do their research.
The DuoModo website lists the M1 for just the xMac mini Module (Mac mini Mounting Module + Thunderbolt SSD Storage Dock), which isn't for the eGPU, I don't think... although it's hard to tell, the website is a little hard to follow.
Score: 3 Votes (Like | Disagree)
Richdmoore Avatar
59 months ago
Do these companies continuing to develop EGPU know something we don't about apple's future plans with thunderbolt (maybe M2 eGPU compatibility?) or are they basically just developing these for the PC market and what remains of the legacy intel macs?

It really doesn't make sense to me to keep releasing these products with the apparent depreciation of eGPU thunderbolt support.
Score: 2 Votes (Like | Disagree)