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OWC Mercury Helios 5S
OWC Mercury Helios 5S
Thunderbolt 5 PCIe 4.0 x4 External Expansion Enclosure
OWC Mercury Helios 5S enables single-slot PCIe expansion for laptops and compact desktops via Thunderbolt or USB4.
The enclosure supplies a PCIe 4.0 x4 (x16 mechanical) slot with tool-free installation and up to 6000MB/s bandwidth available for simultaneous read/write.
It also adds three Thunderbolt 5 (USB-C) ports, each 80Gb/s and 15W, while including a certified 0.7M OWC Thunderbolt 5 (USB-C) Cable.
- Single PCIe 4.0 x4 (x16 mechanical) slot for pro cards.
- Up to 6000MB/s bandwidth available for simultaneous read/write.
- Three Thunderbolt 5 (USB-C) ports—80Gb/s and 15W each.
Category: All PCIe Expansion Chassis
Brand: OWC
£ 286.95 | £ 344.34 inc VAT
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OWC Mercury Helios 5S Product Overview
OWC Mercury Helios 5S is an external Thunderbolt expansion enclosure designed to bring a full-size PCIe 4.0 x4 slot to laptops and small form factor desktops via a single Thunderbolt or USB4 connection.
The enclosure combines high bandwidth, tool-free card installation and a compact aircraft-grade aluminium chassis with additional Thunderbolt 5 ports to extend connectivity for professional workflows.
Performance
Mercury Helios 5S provides up to 6000MB/s bandwidth available for simultaneous read/write, enabling modern PCIe 4.0 cards to operate at full speed for demanding tasks such as 8K video capture and high-speed networking.
PCIe Slot
The unit features (1) PCIe 4.0 x4 (x16 mechanical slot) that accepts half-length, full-height, single or double-width cards, including those with daughter boards.
Card Compatibility
The enclosure supports pro-level cards from brands commonly used in audio, video and networking workflows and accepts a broad range of card types; cards that require a minimum of x8 PCIe lanes or more than 75W are not supported, and GPUs are not supported.
Connectivity
Three Thunderbolt 5 (USB-C) ports provide 80Gb/s throughput each and 15W power delivery each, allowing daisy-chaining of high-performance drives and displays while the single host connection provides PCIe access to the fitted card.
Installation And Serviceability
Captive thumb screws enable tool-free card installs and swaps, and the mesh panel is removable to accommodate double-width cards or cards with daughter boards.
Cooling And Chassis
OWC Mercury Helios 5S uses an aircraft grade aluminum housing and a high-efficiency, adjustable speed cooling fan to keep the enclosure cool with nearly silent operation.
Included Items
The product includes a certified 0.7M OWC Thunderbolt 5 (USB-C) Cable, a power cord retainer, and features auto power on/off with the computer.
Compatibility With Hosts
Use with Thunderbolt 5/4, USB4 Macs and PCs, and Thunderbolt 3 Macs for broad generational compatibility across current and recent host systems.
OWC Mercury Helios 5S Key Features
- Provides a single PCIe 4.0 x4 expansion slot in an x16 mechanical slot for pro cards and adapters.
- Delivers up to 6000MB/s bandwidth available for simultaneous read/write to support high-throughput PCIe cards.
- Three Thunderbolt 5 (USB-C) ports expand connectivity, each capable of 80Gb/s and offering 15W power delivery.
- Compatible with Thunderbolt 5/4, USB4 Macs and PCs, and Thunderbolt 3 Macs for broad host support.
- Accepts half-length, full-height, single or double-width cards, including those with daughter boards; the mesh panel is removable for larger cards.
- Tool-free installation with captive thumb screws for fast card swaps and easy servicing.
- Aircraft grade aluminum housing with a high-efficiency, adjustable speed cooling fan for cool, nearly silent operation.
- Includes a certified 0.7M OWC Thunderbolt 5 (USB-C) Cable, power cord retainer, and auto power on/off with the host computer.
- Supports a wide range of pro-level PCIe cards from leading manufacturers for video, audio, networking and storage workflows.
- Devices that require a minimum of x8 PCIe lanes or draw more than 75W are not supported, and GPUs are not supported by this unit.
OWC Mercury Helios 5S Technical Specifications
| Model | OWC Mercury Helios 5S |
| Internal Class Speed | Up to 6000MB/s bandwidth available for simultaneous read/write |
| PCIe Slot | (1) PCIe 4.0 x4 (x16 mechanical slot) |
| Supported Card Sizes | Half-length, full-height, single or double-width (including those with daughter board) |
| Host Compatibility | Thunderbolt 5, Thunderbolt 4, USB4 Macs and PCs, and Thunderbolt 3 Macs |
| Thunderbolt Ports | Three Thunderbolt 5 (USB-C) ports — 80Gb/s each; 15W power delivery each |
| Included Cable | Certified 0.7M OWC Thunderbolt 5 (USB-C) Cable |
| Included Accessories | Power cord retainer; auto power on/off with your computer |
| Chassis | Aircraft grade aluminum housing |
| Cooling | High-efficiency, adjustable speed cooling fan |
| Installation | Captive thumb screws for tool-free card installs; removable mesh panel for double-width/daughterboard cards |
| Limitations | Cards that require a minimum of x8 or more PCIe lanes or more than 75W are not supported. GPUs not supported. |
OWC Mercury Helios 5S – Product Videos
OWC Delivery Information
Generally, next working day delivery services (UK Mainland) are available on standard OWC Delivery orders placed before 2 pm (subject to stock availability).
Non-timed deliveries should be delivered between 9 am and 6 pm.
Orders placed after 2 pm on Fridays and weekends will be processed as normal the following Monday.
Orders placed on Bank Holidays will be processed the next working day.
If urgent, please call one of our helpful account managers so they may double check everything for you, enabling you to place your order with confidence.
• Please note: these product details are for guide purposes only, and may contain errors.
•• We always recommend double-checking the product specs and features on the manufacturer website, and/or contacting us if unsure before ordering.
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