OWC Introduces Mercury Helios 3 with Thunderbolt 3 Technology

OWC helps users bring PCIe card functionality back to their workflow.

May 19, 2017 | Woodstock, IL


OWC®, a leading zero emissions Mac and PC technology company, has released the Mercury Helios 3, the little black box to do it all. This Thunderbolt 3 version of the OWC Mercury Helios expansion chassis for PCIe cards delivers nearly unlimited PCIe card expansion potential for Thunderbolt 3 equipped Mac or Windows PCs.

The new OWC Mercury Helios 3 chassis builds on features that have made the Mercury Helios chassis a remarkable success. Two Thunderbolt 3 ports replace the Thunderbolt 2 ports found on the original Mercury Helios, with one port connecting to the computer. The other Thunderbolt 3 port enables connecting additional Thunderbolt 3 devices or hosting a Thunderbolt Daisy Chain of up to five devices. And the Mini DisplayPort connects a display up to 4K. Users will be able to connect to specialty high bandwidth NIC cards, HBAs and RAID controllers for high-performance storage, as well as add high-end video capture and processing cards and audio production PCIe cards for unrivaled Mac or Windows PC performance.

Highlights include:

  • Two Thunderbolt 3 Type-C ports enable daisy-chaining up to five devices to a single host on the port computer
  • One PCIe slot, supports half-length, full-height PCIe cards
  • One Mini DisplayPort to allow a second 4K display to be added to desktop
  • The Thunderbolt 3 port on the MBP allows the Mercury Helios to be connected to the Black Magic PCIe card for maximum bandwidth while transferring 4K video data at up to 40Gb/s – for remarkable remote productivity
  • A quiet, variable-speed fan automatically cools the card
  • Rugged aluminum housing offers sturdy protection no matter the environment
  • Energy saver mode powers on/off automatically with the computer
  • Thunderbolt cable included


OWC is now shipping the Mercury Helios 3 with Thunderbolt 3 technology. OWC upgrades are available from retailer and etailers in the US and around the world. For more information, please visit Mercury Helios 3. An image is available for download here.

About OWC

Having served the Apple community worldwide since 1988, OWC has become the reliable manufacturer and upgrade provider of choice for Apple and PC enthusiasts with its extensive catalog of accessories, storage, and memory upgrades for nearly every Mac made in the last decade. Recognized for award-winning customer service, OWC provides extensive U.S.-based technical support for Mac and PC users around the world and comprehensive step-by-step installation and support videos.

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Company Contact: Jennifer Myers, (815) 502-5640,

© 2017 Other World Computing, Inc. All rights reserved. Apple and Mac are the trademarks of Apple Inc., registered in the U.S. and other countries. Intel and Thunderbolt are trademarks of Intel Corporation registered in the U.S. and/or other countries. Other marks may be the trademark or registered trademark property of their respective owners.


About OWC

Other World Computing (OWC), founded in 1988, is dedicated to helping Mac and PC enthusiasts do more and reach higher. We believe in sustainability – OWC solutions are genuinely built to last, go the distance, and enable users to maximize the technology investment they have already made. OWC's operation provides leadership in business sustainability, with its headquarters among the first in the world awarded LEED Platinum certification. OWC features an award-winning technical support team and an unparalleled library of step-by-step DIY and informational videos. From the home desktop to the enterprise rack, the corporate backup to secure medical data, the recording studio to the motion picture set, and beyond, there should be no compromise. That is why OWC is here.

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Company Contact

Nathan Papadopulos