Thunderbolt is the apex of external connectivity I/O. With Gen 3, we now have access to 40 Gb/s of throughput which opens up the window to a whole host of devices. OWC, over the last two generations, has deployed the Mercury Helios to enable users a greater level of customization with Thunderbolt technology. The Mercury Helios 3 is a Thunderbolt 3 enclosure as the name suggests. It is a single slot solution supporting half-length cards up to 7.5", full height and double width as well. Features include dual Thunderbolt 3 ports allowing daisy chaining up to five additional devices along with miniDP for displays supporting resolutions up to 4K60. Internally, we have a full PCI-E x16 slot with 75 watts of power support. Compatibility includes macOS 10.12 and later, Windows 10, and BootCamp support for Windows. The MSRP comes in at $199.99 with a three-year warranty.