Possible AMD Ryzen PRO 4000G Series SEP Prices Surface, Incompatible with 400-series Chipset | TechPowerUp
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Amazon.com: Micro Center AMD Ryzen 5 5600X Desktop Processor 6-core 12-Thread Up to 4.6GHz Unlocked with Wraith Stealth Cooler Bundle with ASUS ROG Strix B550-A AMD AM4 Zen 3 Ryzen 5000 ATX
Confirming that Ryzen 2000 runs on B550 board : r/Amd