OTHER WORLD COMPUTING 

OTHER WORLD COMPUTING OWCTB5HELIOS5S OWC MERCURY HELIOS 5S THUNDERBOLT 5 80GB/S PCIE AND CONNECTIVITY EXPANSION - INC

Mfg Part Number:  OWCTB5HELIOS5S  
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Price: $408.74
Quantity:
More to Come
Last Updated: Mar 23, 2026
No Sales Tax except these states
, PO and Wire.

Expand Your Capabilities Effortlessly

We get that you love your marvelously slender Mac or PC, but also understand you often wish it offered more functionality. Now with the OWC Mercury Helios 5S, you can give your notebook, small form factor, or "all in one" desktop machine pro grade, full-size workstation capabilities. Whether you want to use an ultra-fast storage, 8K video capture, audio DSP, or high-speed networking PCIe card, Mercury Helios 5S makes it easy via a single Thunderbolt or USB4 connection and with no tools required. Plus, with three additional Thunderbolt 5 ports, it also gives you a handy next-gen connectivity hub. Embodying the heritage of innovation that has made OWC the global leader in Thunderbolt solutions, Mercury Helios 5S expands your capabilities effortlessly so you can think outside the traditional bulky desktop box when it comes to PCIe-based workflows.

  • Internal Class Speed: Up to 6000MB/s bandwidth available for simultaneous read/write
  • Widely Compatible: Use with Thunderbolt 5/4, USB4 Macs and PCs, and Thunderbolt 3 Macs
  • Expands Small Machines: Use video capture, high-speed fiber/Ethernet, NVMe RAID, audio I/O, and other cards to unlock the potential of MacBooks, Mac Studio, Mac mini, and other space-constrained computers lacking a PCIe slot
  • Whisper Quiet: Aircraft grade aluminum housing with high-efficiency, adjustable speed cooling fan provides cool, nearly silent operation
  • Pro Level Card Ready: (1) PCIe 4.0 x4 (x16 mechanical slot) for half-length, full-height, single or double-width (including those with daughter board) cards
  • Easy Card Installs: Captive thumb screws so no tools required
  • Expanded Connectivity: Three Thunderbolt 5 (USB-C) 80Gb/s ports each with 15W power delivery for more device, display, and drive possibilities
  • Complete, Secure, and Convenient: Includes Thunderbolt 5 80Gb/s cable, power cord retainer, and auto power on/off with your computer

Full-Speed PCIe Performance Ahead

Forget the belief that internal is always faster than external. The Mercury Helios 5S delivers up to 6000MB/s of bandwidth so you can run modern PCIe 4.0 cards at full speed while still accommodating data-hungry external Thunderbolt drives. Whether you're editing multi-cam 8K footage, running real-time audio processing, or transferring terabytes across a 25GbE network card, Mercury Helios 5S gives you the performance you'd expect from an internal PCIe slot with the flexibility of an external one.

More from the Manufacturer

Main Specification
General Information
Manufacturer Other World Computing
Manufacturer Part Number OWCTB5HELIOS5S
Manufacturer Website Address https://www.owc.com/
Brand Name OWC
Product Line Mercury Helios 5S
Product Name Mercury Helios 5S
Packaged Quantity 1
Product Type Expansion Chassis
Technical Information
Connectivity Technology Wired
Data Transfer Rate 10 GB/s
Cable Length 2.30 ft
Interfaces/Ports
Host Interface Thunderbolt 5
Power Description
Power Source Type Power Supply
Physical Characteristics
Color Family Black
Product Color Black
Product Material Aluminum
Height 3.2"
Width 5.6"
Length 9.2"
Weight (Approximate) 3.75 lb
Miscellaneous
Package Contents
  • Mercury Helios 5S
  • 1 x 0.7M (28") Thunderbolt 5 Cable
  • 90W External Power Supply
  • 1 x 1.8M (70.9") Power Cable (3-Prong IEC 05)
  • 1 x Getting Started QR Insert Card
  • 1 x Support Manual for OWC Mercury Helios 5S (digital)
Application/Usage Workstation
Application/Usage Mac
Application/Usage Computer
Application/Usage Laptop
Application/Usage PC
Compatibility

Apple Products:

  • Mac Studio +
  • MacBooks
  • Mac Studio
  • Mac Mini
Energy Star Yes
Environmental Compliance Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
Environmental Compliance Restriction of Hazardous Substances (RoHS)
TAA Compliant Yes
Warranty
Limited Warranty 3 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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