bfeWilll

Sorry if this has been asked already. I searched but couldn't find anything. We have a few ASUS GR8 II desktops here and we're looking to upgrade our network to 10Gb. While they do have USB-C, I don't believe they are Thunderbolt, but just USB 3.1. I opened up one of these and couldn't find a spare PCIe slot in there, so even if I managed to hack in a card, I don't think I have anywhere to attach it. Are these computers just SOL or is there another way to achieve 10GbE?