Anandtech published AMD B550A System Spotted: OEM Only Chipset, PCIe 3.0
A quote from the article:
In every motherboard generation on AMDs AM4 socket, we have seen a premium motherboard chipset and a more budget friendly chipset play out in the market. For the latest generation, focusing on Ryzen 3000 processors, we only have the X570 chipset in the market right now, and were expecting to see a B550 chipset and motherboards built on that chipset at somepoint in the future. B550 hasnt been announced yet, but one avid Reddit user has spotted an OEM system built on the B550A chipset in stores. The existance of B550A has been verified by an AMD employee.AMD B550A System Spotted: OEM Only Chipset, PCIe 3.0
AMD’s B550A chipset belongs to the company’s Promontory-LP family and therefore supports 2+4 PCIe Gen 3 lanes, two USB 3.2 Gen 2 links, and six USB 2.0 connectors. The chipset is supposed to support overclocking, yet since it is only available to OEMs, it is up to them to support the feature. The key capabilty of the B550A is that is has been validated to support AMDs Ryzen 3000 desktop processors.