Review: MSI B550M-A PRO — custo-benefício no AM4 com Ethernet Gigabit e USB 3.2

Se você está montando um PC intermediário com processadores AMD Ryzen de 3ª geração ou quer investir em uma base sólida para o futuro, a MSI B550M-A PRO se destaca como uma placa-mãe de entrada com foco em confiabilidade, compatibilidade e conectividade essencial. Ela entrega o essencial sem exageros, ideal para quem busca estabilidade para trabalho, estudo e jogos casuais sem pagar caro por recursos que talvez nunca utilizará.

Em linhas gerais: é uma M-ATX com socket AM4, suporte a DDR4, conectores físicos na medida e BIOS simples de usar. A proposta é clara — oferecer uma base moderna, funcional e econômica para quem prioriza custo-benefício.

Especificações resumidas

• Socket: AM4 (chipsets AMD B550)
• Fator de forma: M-ATX
• Memória: 2x DDR4, dual-channel, velocidades típicas suportadas variam conforme o processador; refere-se ao manual da placa para perfis XMP/EXPO
• Slots de expansão: 1x PCIe 3.0 x16 (x16) e 1x PCIe 3.0 x1
• Armazenamento: 1x M.2 NVMe (PCIe 3.0 x4) e 4x SATA III (6 Gb/s)
• Rede: 1x Realtek RTL8111H Gigabit Ethernet
• Áudio: 1x Realtek ALC892 (7.1 canais)
• USBtraseira: USB 3.2 Gen 1 (5 Gb/s) e USB 2.0 para dispositivos básicos
• Conectores internos: USB 3.2 Gen 1 (pino 19) e USB 2.0 (pino 10)
• Extras: BIOS simples com M-Flash, diagnóstico em PCB (EZ Debug LED) e潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷潷