Supports AMD Ryzen 5000 Series / 4000 G-Series / 3000 Series Processors
BIOS update might require for AMD Zen 3 Ryzen 5000 series CPU
AMD B550
DDR4 5100 (OC) / 5000 (OC) / 4800 (OC) / 4600 (OC) / 4400 (OC) / 4133 (OC) / 4000 (OC) / 3866 (OC) / 3600 (OC) / 3466 (OC) / 3200 / 3000 / 2800 / 2666 / 2400 / 2133 (Next Generation AMD Ryzen PRO Processors)
DDR4 4600 (OC) / 4400 (OC) / 4133 (OC) / 4000 (OC) / 3866 (OC) / 3600 (OC) / 3466 (OC) / 3200 / 3000 / 2800 / 2666 / 2400 / 2133 (3rd Gen AMD Ryzen Processors)