The ASRock B550 Phantom Gaming 4 supports AM4 Ryzens — with two exceptions

The ASRock B550 Phantom Gaming 4 uses an AM4 socket and is compatible with AMD Ryzen 3000, 4000 G-series, and 5000 series desktop processors — but not the Ryzen 5 3400G or Ryzen 3 3200G, despite them sharing the same socket. A B550 quirk worth knowing before you buy.