Hopefully this clears up a fair bit of misinformation and provides some answers. It is not supported on any other platforms. Unofficially though I found a presentation / youtube video where someone was testing an Asus Thunderbolt 3 addon Card in their Asus Z97 board with a Thunderbolt 3 EGPU case and a GPU inside it. It is, officially at least, stuck on Thunderbolt 2. You can see that in the QuickSpecs document in the Compatibility section on page 1. My Asus Z97 Deluxe came with with Thunderbolt 2 EX Card + Header Connection. This card is supported on the HP Z8 G4, HP Z6 G4, and HP Z4 G4. There is a QuickSpecs document available here: Īs of right now, it is 'Coming Soon' here:

If you can’t find one available for purchase now, I expect that you will be able to soon. Thunderbolt PCIe card expansion systems, eGPU enclosures, 10GbE adapters, pro media card readers, docks and hubs, and accessories. The Thunderbolt 3 card for the Z8 G4 is slowly rolling out with a model number of 3UU05AA. There are possibly other technical reasons that these cards are incompatible. Since the cables for these two cards have different connectors, they are incompatible with the Z8 G4 motherboard. And, with the speed and bandwidth support of Thunderbolt 3 and PCIe 3.0, you can enjoy many of the same port additions you would from the PCI Express expansion slots of a desktop system. For an HP Z8 G4, a Gigabyte Thunderbolt 3 card or an Asus Thunderbolt 3 card will not work. Thunderbolt cards have a cable running from the card to a connector on the motherboard making it very specific to the motherboard it was built for. You can add many types of PCI Express cards, such as a PCIe USB 3.1/3.0/2.0 and USB-C, SSD, network, eSATA, FireWire or video capture cards.

Pcie thunderbolt 3 card