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Scan code: LN81340 Manufacturer code: SON-GPU350W-TB3Z

eGFX Breakaway Box - 350W by Sonnet

Sonnet eGFX Breakaway Box - 350W Thunderbolt 3 Expansion System for Desktop GPU or Other PCIe Cards

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Scan code: LN81340 Manufacturer code: SON-GPU350W-TB3Z
End Of Life This product is no longer available to purchase
Delivery Options
  • By DPD to your specified address. | £11.50 Receive SMS with one-hour delivery window Weekend, timed and European delivery options are available at checkout

    Have your parcel delivered by DPD to your specified address. Receive SMS with one-hour delivery window

    Weekend, timed and European delivery options are available at checkout
  • Collect instore Collect from our Bolton store, BL6 6PE | Free

    Order online, collect from our Bolton store (25-28 Enterprise Park, Middlebrook, Horwich, Bolton, BL6 6PE)

  • UPS and DPD Pickup Pickup from local convenience store | £4.79

    Collect your parcel from your newsagents, petrol stations and convenience stores

  • SCANPROTECT Protect against installation damage for 28 days. More info

    ScanProtect is an enhanced warranty specifically designed and offered by Scan to reduce the risk of any mishap or damage to components during installation.

    Our aim with ScanProtect is to encourage our customers to upgrade or build their own PC confidently. For a small additional fee our customers are provided with complete peace of mind.

Sonnet eGFX Breakaway Box: Full Power


Upgrade without throwing outAs laptops and desktops become ever increasing in their upgrade cycles, sometimes a machine from a couple years ago is just fine on the CPU front and the bottleneck generates from the graphics card becoming out of date. The Sonnet eGFX Breakaway Box is the perfect solution to upgrading a recent laptop like a Macbook Pro or one of our lower end 3XS system machines and even circumvent the cycle of buying everything new again.

Support for NVIDIA and AMD


Full Sized Graphics Card on the goThe eGFX Breakaway Box comes outfitted with a Thunderbolt 3 port, making it ideal for connecting to the latest laptops and interfaces. The PCI-e (PCI Express) port inside and the unit itself can fit a full length graphics card, like the best in the world at the moment, the NVIDIA GTX 1080ti and AMD Vega 64. For those more production inclined, the Breakaway Box also supports the Quadro line of cards.

Having the ability to circumvent the need to buy a whole new system gives life to machines that still have the speed and power elsewhere, but might not be able to hold their own in the graphics department. The Sonnet eGFX Breakaway Box gives you options that weren’t previously available. Once you’re ready to fully upgrade to a new system entirely, you can bring the full card into your machine.

Thunderbolt 3


Thunderbolt 3The power of Thunderbolt 3 means that external graphics card expansions are now actually usable. In the past, with USB 2.0, 3.0 or Thunderbolt 2, the speed just wasn’t there, but the sheer power of this advancement means that the full blown power of the graphics card can be implemented.

What can the eGFX Breakaway Box be used for?


Video EditingSo the eGFX Breakaway Box can turn your plain old laptop or older desktop into the powerhouse that you need, but what can you use it for? Well, with the additional graphical horsepower, your rendering times will be slashed, meaning your video or image projects will be completed quicker, allowing you to get back to what you do best: creating more things to be rendered, colour graded or applying special effects.

View and Edit 4KYou can now bring 4K to a machine that didn’t use to have the capabilities, allowing you to output to a monitor or screen, displaying your work in the best quality possible or even just watch a UHD movie.


GamingWith the power for multimedia editing in tow, it also means that you can game at high frame rates with increased graphical settings. MMOs (Final Fantasy XIV, World of Warcraft), MOBAs (DOTA 2, League of Legends) and First Person Shooters (Counter Strike: Global Offensive and Overwatch) are all now playable at top settings. There’s no need to invest in a whole new machine, as current ultrabooks will do just fine with the additional power given by the eGFX Breakaway Box.

Scan Pro Video Recommends


Graphics Cards? But Which One?Usually at Scan Pro Video, we don't really delve too deep into graphics cards, but considering Sonnet have given free reign over what you can choose, we've decided to recommend SIX cards! From AMD, the Vega56 and Vega64 are ideal for the Macbook Pro or any Windows computer you're looking to juice up. On MacOS, currently only AMD cards are supported by High Sierra, so to prevent you having to go the extra mile, we'd highly recommend that you look into these cards.

However, if you're on a Thunderbolt 3 enabled Windows machine, the Nvidia 1070 Ti and 1080 Ti are the perfect choices in future proofing if you want to game or edit. The other Nvidia card, the Quadro P5000, is a powerful menace to all your video editing needs, with a focus on visual effects and larger rendering tasks.

The final card is the Red Rocket-X, a specialist card that supports 3G SDI and Display Port Outputs, allowing you to have direct 4K playback and it works with 6K files faster than realtime.


Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

12 months
Return to base
DOA Period:
28 days
RTB Period:
12 months
Manufacturer Contact Details
Scan Computers International Limited
eGFX Breakaway Box - 350W by Sonnet
eGFX Breakaway Box - 350W by Sonnet