MSI

PRO B550M-B Spec and Price in Spain

Name: PRO B550M-B
Brand: MSI

AM4B550

A Micro-ATX AM4 board on the AMD B550 chipset with a single PCIe 4.0 x16 slot and two M.2 slots. Its two DDR4 DIMM slots take up to 64GB, and it offers four SATA ports with no onboard Wi-Fi.

Tied 1275th of 1869 models in the Motherboards catalog on RAM slots — 595 models share this figure. Tied 1532nd of 1869 models in the Motherboards catalog on Max memory — 273 models share this figure.

Current best price

74,95 €at Amazon.es · captured 2026-09-15View at Amazon.es

Captured periodically and may have changed.

Price history

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PRO B550M-B

August 24, 20265 capturestoday · 74,95 €

Each point is one capture, not a list price. How we track prices

Specifications

Socket: AM4
Chipset: B550
Form factor: Micro-ATX
Memory type: DDR4
RAM slots: 2
Max memory: 64 GB
M.2 slots: 2
PCIe x16 slots: 1
PCIe version: 4.0
SATA ports: 4
Wi-Fi: No

Guides for this category

How to choose a motherboardThe socket decides which processor goes in; chipset, form factor, memory support and the slot counts decide whether the rest of the build fits around it.

Sources

Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.

MSI — specifications