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 Internal Class Speed: Over 6000MB/s bandwidth available for simultaneous read/write Pro Level Card Ready: (1) PCIe 4.0 x4 (x16 mechanical slot) for half-length, full-height, single or double-width cards Expanded Connectivity: Three Thunderbolt 5 (USB-C) 80Gb/s ports each with 15W power delivery for more device, display, and drive possibilities 3 Year OWC Limited Warranty OWC Mercury Helios 5S Thunderbolt 5 (USB-C) PCIe and Connectivity Expansion Solution The Powerfully Simple Way to Use PCIe Cards with Thunderbolt 3/4/5 or USB4 Computers While Adding More Thunderbolt 5 Ports Modern notebooks, small form factor computers, and “all in one” desktop computers are slender marvels of engineering, but they have a major shortcoming. The lack of internal space to install PCIe cards for added functionality. The OWC Mercury Helios 5S opens a world of pro grade, full-size workstation capabilities to those machines via a single Thunderbolt connection. Adding a high-speed storage, networking, audio DSP, 8K video capture, or specialty adapter card is a quick, no tools required process. Plus, with three Thunderbolt 5 ports, the Mercury Helios 5S doubles as a space-saving connectivity hub for additional device or display connectivity. Now you and your customers can truly think outside the bulky desktop box when it comes to PCIe-based workflows thanks to the proven leader in Thunderbolt technology with the most extensive range of Thunderbolt solutions globally.