https://wccftech.com/asrock-unleashes-x570s-pg-riptide-b550-pg-riptide-motherboards-for-amd-ryzen-desktop-cpus/

ASRock has announced two brand new motherboards within its AMD 500-series lineup, the X570S PG Riptide and the B550S PG Riptide. Both motherboards are fully compatible with Ryzen Desktop CPUs and APUs.

The PG Riptide from ASRock is a brand new series within its motherboard portfolio. The two new products launching within this series are the X570S PG Riptide and the B550 PG Riptide. The new X570S PG Riptide is ASRock's second passively cooled X570 design with the first being the ASRock X570 Aqua which had its PCH liquid-cooled. Following are details on both motherboards.