MSI

MAG B850 Gaming Plus Max WiFi Spec and Price in Canada

Name: MAG B850 Gaming Plus Max WiFi
Brand: MSI

AM5B850

An ATX AM5 board on the AMD B850 chipset with a PCIe 5.0 x16 primary slot and four x16-length slots in total. Four DDR5 DIMM slots take up to 256GB, and it carries three M.2 slots and four SATA ports. Networking is Wi-Fi with 5 Gigabit Ethernet and two rear USB-C ports.

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

$325.99at Newegg Canada · captured 2026-09-09View at Newegg Canada

Captured periodically and may have changed.

Price history

30D 90D 180D All

MAG B850 Gaming Plus Max WiFi

August 24, 20265 capturestoday · $325.99

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

Specifications

Socket: AM5
Chipset: B850
Form factor: 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: 2
Wi-Fi: Yes

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