Use PCIe cards with your Thunderbolt 3 Mac and Windows PC
Maximize Your PCIe Card Investment with An External PCIe Slot
A New World of Expansion Flexibility
Using a video, audio, storage, network, or even gaming PCIe card with a Mac Pro or PC desktop is a simple matter of inserting your card into an open slot. But what do you do if you have a laptop or even a space-confined desktop like an iMac or Mac mini that doesn't contain a PCIe slot?
The OWC Mercury Helios 3S is an easy to use yet powerful expansion solution that adds an external PCIe slot to your Thunderbolt 3 equipped computer. Now you can maximize your existing PCIe card investment — or expand it! — while enjoying the flexibility of adding professional-class video production, transcoding, audio processing, data storage, and high-speed network connectivity to your machine.
Retask Without Limits
Instead of buying one or more function-dedicated Thunderbolt interface devices, you can use Mercury Helios 3S like a dock for multiple PCIe cards. Capture incredibly high-quality audio with a PCIe audio card and then retask Helios 3S with a PCIe SSD card to edit and archive tracks. You can swap cards in minutes, adding a new level of flexibility to your workflow.
Capture, Stream, and Share in Seconds
With dual 40Gbps Thunderbolt 3 (Thunderbolt 2/Thunderbolt backward compatible), the Mercury Helios 3S offers the bandwidth needed to support data-intensive 4K capture cards to speed up diverse video workflows such as vlogging. Boost your DAW with external DSP acceleration and run larger mixes with multiple plug-ins. Livestream the action in your gaming sessions or share files over a 10GbE or Fibre Channel network without any speed throttling.
Pro-Level Performance Cards for Every Need
Mercury Helios 3S supports a wide variety of half-length, full-height, single or double-width pro-level PCIe cards from leading brands like AJA, Apogee, ATTO, Avid Pro Tools, Blackmagic Design, CalDigit, HighPoint, Intel, Solid State Logic, Universal Audio, and OWC:
Solid State Drive (SSD)
40GbE/10GbE network adapters
Firewire, USB, or eSATA host adapters
Add New Capabilities to Your Workflow
Thunderbolt 3 offers more than just speed. Mercury Helios 3S leverages the full power of Thunderbolt 3 to deliver added potential to your Mac or PC. Daisy-chain up to five additional Thunderbolt peripherals for incredible capabilities to work or play. Charge your notebook with 85W while you work. Even add another 4K monitor via the DisplayPort interface to expand your viewing space.
Plug and Play
No special software or drivers needed...just plug the Mercury Helios 3S into an open Thunderbolt 3 port on your computer with the included cable to immediately expand your system capabilities.
No tools required either...just remove two thumb screws and insert a card to start enjoying productivity gains wherever your work takes you
Lightning-fast 40Gbps transfer speeds: (2) Thunderbolt 3 ports
Play your card: (1) PCIe (x16) slot for half-length, full-height, single or double-width cards
See more: Dedicated 4K DisplayPort for adding an additional 4K monitor
Easy card installs: No tools required
Charge while working: 85W of notebook charging
(1) Mercury Helios 3S
(1) Thunderbolt 3 cable
(1) External power supply
(1) Power cable
(1) User guide
OWC Part Number
macOS 10.13 or later
Windows 10 or later
PCIe Cards Supported
One PCIe 3.0 card that is up to half-length, full-height, and double-width
PCIe cards that utilize a PCIe 3.0 x4 interface. PCIe cards that require a minimum of 8 or more PCIe lanes are not supported.
GPUs not supported
If the card requires a driver it must be Thunderbolt-aware.
Cards that require more than 75W are not supported.
(2) Thunderbolt 3
(1) DisplayPort 1.4
Thunderbolt 3: Titan Ridge (JHL7440)
PCI Express 3.0 interface (x4) with x16 physical slot
Display Host Capabilities
Supports dual display configurations via Thunderbolt 3 and DisplayPort
The DisplayPort does not support DP++
When using a DisplayPort to HDMI adapter, make sure to use an active adapter.
AC Input 2.2A 100-240V 50-60Hz
DC Output 12.5A 12V
Height: 8.2 cm (3.2 in)
Width: 14.3 cm (5.6 in)
Length: 23.3 cm (9.2 in)
1.6 kg (3.64 lbs)
The Mercury Helios 3S can deliver up to 85W of power for host charging when the host is connect to the 85W port.
If the PCIe card installed uses more than 25W of power, plug in the power adapter to your host.
You can use the Thunderbolt 3 to Thunderbolt 2 adapter from Apple to connect this device to a Thunderbolt 2 computer. Power Delivery is not supported in this configuration and bandwidth will be limited to ~ 1375 MB/s.
Manufacturer provided specifications for Other World Computing p/n HELIOS3S UPC#: 810586032773
DisplayPort, Thunderbolt 3 (40Gb/s)
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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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1. We will give you a 30-day, money-back guarantee on all our products. This means you can test drive the product in the convenience of your home. This is of course in addition to the standard manufacturer replacement warranties.
If your order contains a faulty product or a product incorrectly sent, we will of course take back the product and refund your money or send you a replacement product.
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