ASRock has been displaying quite a few of its new products at the Computex 2019 trade event in Taiwan. Two especially interesting items from the Taiwanese manufacturer have already sparked speculation online as to what they could be. Although they are labeled as concept cards, it has been reported they could be Navi Radeon RX 5700 graphics cards.
https://www.notebookcheck.net/ASRock-may-have-just-shown-off-physical-Navi-Radeon-RX-5700-desktop-graphics-cards.422414.0.html