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OWC Mercury Helios FX External Expansion Chassis with Thunderbolt 3 for PCIe Graphics Cards

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In stock at supplier: Yes

Leaves warehouse in 1-2 weeks

Shipping cost is $9.90 (flat rate) for any size order.
This product is covered by an Australian Replacement Warranty.
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Product code: OWCHELIOSFX

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Elevate gaming performance or just add sheer computational power. Compatible with Mac and PC.

Your price: $659.99

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Mercury Helios FX 
External Expansion Chassis with Thunderbolt 3 for PCIe Graphics Cards

Mac / PC / Thunderbolt 3
The eGPU Chassis Built To Empower Everyone
Whether you want to achieve smoother frame rates, encode faster, edit at greater resolutions, utilize VR and AR, or take advantage of the computational gymnastics of which GPUs are known for — the OWC Mercury Helios FX is the external GPU built to empower everyone.
Feature Packed and Whisper Quiet
Experience the processing prowess of high-performance GPUs with Helios FX's phenomenal 40Gb/s Thunderbolt 3 interface. 

Featuring a robust power supply, the Helios FX is built to handle the most demanding GPUs while simultaneously charging your laptop. The whisper-quiet cooling fan makes Helios FX the perfect addition to serve in noise-sensitive workstations. 

And with support for all Thunderbolt-compatible AMD and NVIDIA GPUs, you'll have plenty of workflow empowering options to choose from.
Video Editing Empowered
Simply plug in the Helios FX with the GPU of your choice for the power to work with larger resolutions, experiment with more effects, render and encode faster, and enjoy greater fluidity when scrubbing through timelines and manipulating larger files. All of that adds up to more time to bring your creative vision to life.
Transformative Laptop Graphics
Owners of laptops that serve double-duty as a remote and desktop workstation no longer need to settle for mere "laptop quality" GPUs. Simply plug the Helios FX into your Thunderbolt 3-equipped laptop and experience exhilarating desktop-class graphics performance with the bandwidth to support multiple displays. 

With the Helios FX in your arsenal, you no longer need a large gaming laptop. You can instead opt for a lighter laptop, and when you don't need the added Helios FX GPU horsepower, simply disconnect the Thunderbolt 3 cable to leave the weight behind. And when a newer, faster, and better GPU comes out — you can easily swap out the GPU versus buying a completely new laptop. How's that for versatility?
Number Crunching Gymnastics
GPUs aren't just for gaming, editing, and media — they're also built for significant data crunching. The OWC Mercury Helios FX makes it easy to add exponentially faster GPU-accelerated performance for data science, forecasting, modeling, engineering, big data, and image analytics rigs.
Multi-Platform Support
With its Thunderbolt 3 interface, you can simply add or share your eGPU juggernaut with whatever computer or workstation needs a boost. Whether it's a Mac or Windows PC, plug Helios FX in with the included Thunderbolt 3 cable to experience an exhilarating performance boost.
Beyond GPUs
In addition to supporting NVIDIA and AMD GPUs, the Helios FX also supports any Thunderbolt-compatible PCIe card such as popular RED ROCKET and AVID Pro Tools | HDX PCIe cards. 

OWC Mercury Helios FX provides up to 40Gbps of bandwidth for whichever card you choose to empower your workflow.
World-Class OWC Support
Of course, if you ever run into any issues, or simply have a few questions about your OWC Mercury Helios FX, our world-class, award-winning support team is at-the-ready to patiently answer all of your questions.
1. Apple is slated to provide full eGPU support in Spring 2018 with macOS High Sierra requiring the latest driver.


Mercury Helios FX Expansion Chassis

(1) Thunderbolt 3 cable (40Gbps)

(2) 8-pin internal power cables for the GPU

(1) Power cable

Quick start guide



Connect a GPU via Thunderbolt 3

Compatible with Macs1 and Windows PCs

Elevate gaming performance

Add sheer computational power

Simultaneously power and charge laptops

3 Year OWC Limited Warranty


This product is compatible with...Learn how to find your Mac's model ID
iMac Intel
iMac Pro
(27-inch Late 2017)
(December 2017)
Model ID: iMacPro1,1
3.2GHz 8-core, 3.0GHz 10-core, 2.3GHz 14-core, 2.5GHz 18-core
Install Videos coming soon
iMac Intel
iMac w/Retina 5K display
(27-inch Mid 2017)
(June 2017)
Model ID:iMac18,3
3.4GHz i5, 3.5GHz i5, 3.8GHz i5, 4.2GHz i7
Install Videos coming soon
iMac Intel
iMac w/Retina 4K display
(21.5-inch Mid 2017)
(June 2017)
Model ID:iMac18,2
3.0GHz i5, 3.4GHz i5, 3.6GHz i7
iMac Intel
iMac (21.5-inch Mid 2017)
(June 2017)
Model ID:iMac18,1
2.3GHz i5
MacBook Pro Retina w/ Touch Bar
MacBook Pro (15-inch Touch Mid 2017)
(June, 2017)
Model ID: MacBookPro14,3
2.8GHz i7, 2.9GHz i7, 3.1GHz i7
MacBook Pro Retina
MacBook Pro (13-inch Touch Mid 2017)
(June, 2017)
Model ID: MacBookPro14,2
3.1GHz i5, 3.3GHz i5, 3.5GHz i7
MacBook Pro Retina
MacBook Pro (13-inch Retina display Mid 2017)
(June, 2017)
Model ID: MacBookPro14,1
2.3GHz i5, 2.5GHz i7
MacBook Pro Retina
MacBook Pro (15-inch Touch Late 2016)
(October, 2016)
Model ID: MacBookPro13,3
2.6GHz, 2.7GHz, 2.9GHz
MacBook Pro Retina
MacBook Pro (13-inch Touch Late 2016)
(October, 2016)
Model ID: MacBookPro13,2
2.9GHz, 3.1GHz, 3.3GHz


MacBook Pro Retina
MacBook Pro (13-inch Retina display Late 2016)
(October, 2016)
Model ID: MacBookPro13,1
2.0GHz, 2.4GHz


Product Specifications:

Software Requirements

  • macOS 10.13.3 or later1
  • Windows 10 or later

Hardware Requirements

  • Mac or PC featuring Thunderbolt 3 interface2

PCIe Card Support

  • Any driverless PCIe card or PCIe card with a Thunderbolt-aware driver3

Tansfer Rate (Max)

  • Thunderbolt 3 (40Gbps)

Expansion Slots

  • (1) PCIe 3.0 (x4)


  • Internal UL-listed universal auto-switching
  • Supplies 550 W


  • Ambient Temperature
    • Operating: 32°F to 95°F (0°C to 35°C)


  • Height: 20.0 cm (7.9 in)
  • Length: 34.0 cm (13.4 in)
  • Width: 18.5 cm (7.3 in)


  • 3.22 kg (7.10 lbs)

1. As of March 1, 2018 external graphics in macOS is beta status and not yet officially supported. 10.13.3 or later recommended for early adopters. For non-GPU PCIe cards, 10.12.6 or later is required 
2. Thunderbolt and Thunderbolt 2 Macs do not support external graphics. 
3. All cards which require a driver must have a Thunderbolt-aware driver (Mac and Windows).


Manufacturer provided specifications for Other World Computing p/n HELIOSFX UPC#: 812437024678

Additional Information

Colour Black
Type No
Connection Thunderbolt 3 (40Gb/s)
Interface PCI
Form Factor PCI Express
Suitable for MacBook Pro, MacBook Pro Retina, iMac, Mac Pro
Model Identifier MacBookPro13,1, MacBookPro13,2, MacBookPro13,3, MacBookPro14,1, MacBookPro14,2, MacBookPro14,3, iMac18,2, iMac18,3, iMacPro1,1
Manufacturer OWC
Manufacturer P/N HELIOSFX
UPC 812437024678

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Macfixit Australia is an Australian owned and operated business based in Melbourne, Victoria and we've been operating since 2005.

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Shipping cost is $9.90 (flat rate) for any size order. Express Options are available in cart/checkout. All in-stock orders are shipped the same day if received by 10.30 AM (Eastern Time Victoria). Orders received after 11:00 AM are shipped the following business day.

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