MSI

PRO B850M-P Spec and Price in the United States

AM5B850

A Micro-ATX AM5 board built on the AMD B850 chipset with four x16-length slots, led by a PCIe 5.0 primary, and three M.2 slots. Four DDR5 DIMM slots reach 256GB, with four SATA ports and one rear USB Type-C port. Networking is 5 Gigabit Ethernet, with no onboard Wi-Fi.

Tied 34th of 1869 models in the Motherboards catalog on RAM slots — 1241 models share this figure. Tied 14th of 1869 models in the Motherboards catalog on Max memory — 707 models share this figure.

Current best price

No tracked price — this page compares specifications alone.

Specifications

Socket: AM5
Chipset: B850
Form factor: Micro-ATX
Memory type: DDR5
RAM slots: 4
Max memory: 256 GB
M.2 slots: 3
PCIe x16 slots: 4
PCIe version: 5.0
SATA ports: 4
LAN speed: 5 GbE
USB-C ports: 1
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