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OWC Envoy Pro EX SSD
Blazingly fast Thunderbolt 3 SSD!

Up to 4TB capacity, USB-C compatible.

USB-C model also available


Great for travel or for desktop!

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

Want a notebook for travel, but looking for more power when docked at home/work? Add a PCIe graphics card in an external Thunderbolt 3 enclosure. This might appeal to video producers in particular. And as I understand it, more than one external unit can be attached simultaneously.

OWC / MacSales.com (highly recommended) has introduced the about $300 OWC Mercury Helios FX Thunderbolt 3 Expansion Chassis for PCIe Graphics Cards.

  • Software Requirements: macOS 10.13.4 or later1 Windows 10 (64-bit, version 1709) or later. (For non-GPU PCIe cards, 10.12.6 or later is required).
  • Hardware Requirements: Any eGPU-compatible Thunderbolt 3 Mac or PC (Thunderbolt and Thunderbolt 2 Macs do not support external graphics).
  • PCIe Card Support: Any driverless PCIe card or PCIe card with a Thunderbolt-aware driver. (All cards which require a driver must have a Thunderbolt-aware driver (Mac and Windows))
  • Transfer Rate (Max): Thunderbolt 3 (40Gbps)
  • Expansion Slots: (1) PCIe 3.0 (x4)
  • Power: Internal UL-listed universal auto-switching, Supplies 550 W.
  • Environmental: Ambient Temperature Operating: 32°F to 95°F (0°C to 35°C).
  • Dimensions: Height: 20.0 cm (7.9 in) Length: 34.0 cm (13.4 in) Width: 18.5 cm (7.3 in).
  • Weight: 3.22 kg (7.10 lbs)
OWC Mercury Helios FX Thunderbolt 3 Expansion Chassis for PCIe Graphics Cards

The eGPU chassis built to empower

Add the power of a high-performance GPU to your Mac and PC via Thunderbolt 3. Whether you're bringing a creative vision to life, crunching research data, playing the latest hardware-punishing game, or connecting additional displays — the OWC Mercury Helios FX is built to empower everything you do.

The Power to Do More

Achieve smoother frame rates, encode faster, edit in greater resolutions, add displays, utilize VR and AR, elevate gaming performance, or take advantage of the complex data crunching GPUs excel at. You'll have plenty of options with support for most Thunderbolt-compatible AMD Radeon™ and NVIDIA® GeForce®, TITAN, and Quadro® GPUs.

  • Connect a GPU via Thunderbolt 3
  • Mac and Windows PC compatible
  • Elevate gaming performance
  • Utilize multiple displays
  • GPU power + notebook charging
  • Thunderbolt cable included
  • 3 Year OWC Limited Warranty
OWC Mercury Helios FX Thunderbolt 3 Expansion Chassis for PCIe Graphics Cards

Transformative Notebook Performance

Change the way you think of notebooks. Utilize the greater portability and flexibility of lighter laptops while taking advantage of easy-to-upgrade desktop-class GPUs. With an OWC Mercury Helios FX in your arsenal, performance is plug-and-play, and upgrades are easy.

Multi-Platform Flexibility

The OWC Mercury Helios FX provides an exhilarating performance boost to both Macs and Windows PCs featuring a Thunderbolt 3 interface. Whether in a single-platform environment or a mixed-platform environment, the OWC Mercury Helios FX can easily be moved between computers to enhance workflows wherever it is needed most.

Powerful, Cool, and Quiet

The OWC Mercury Helios FX is built to handle the most power-hungry GPUs and simultaneously charge your notebook. It stays cool with a whisper-quiet, temperature-controlled fan, making it perfect for noise-sensitive environments.

Beyond GPUs

It's easy to quickly swap out cards as needed with the OWC Mercury Helios FX. In addition to GPUs, it has the cooling, room, and power to support virtually any Thunderbolt-compatible PCIe card — including popular RED ROCKET and AVID Pro Tools | HDX PCIe cards.

World-Class OWC Support

Should the need ever arise, our award-winning support team is ready to patiently answer any questions you may have about your OWC Mercury Helios FX.

CLICK TO VIEW: OWC Mercury Helios FX Thunderbolt 3 Expansion Chassis for PCIe Graphics Cards

Save Big $$$$ on Memory for 2019 Mac Pro

Up to 65% better pricing than Apple

Lloyd recommends 32GB RDIMM modules for most users (more expensive LRDIMMS are for 512GB or more).


OWC Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.


Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!

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Peak Design Everyday Backpack (20L, Heritage Tan)
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