ASRock

B850M-X WiFi R2.0 Spec and Price in the United States

Name: B850M-X WiFi R2.0
Brand: ASRock

AM5B850

A Micro-ATX AM5 board on the AMD B850 chipset with two x16-length slots, the primary at PCIe 5.0, and two M.2 slots. Two DDR5 DIMM slots take up to 128GB, with four SATA ports and one rear USB Type-C port. Networking is onboard Wi-Fi with 2.5 Gigabit Ethernet.

Tied 1275th of 1869 models in the Motherboards catalog on RAM slots — 595 models share this figure. Tied 792nd of 1869 models in the Motherboards catalog on Max memory — 720 models share this figure.

Current best price

$119.99at Amazon.com · captured 2026-09-15View at Amazon.com

Captured periodically and may have changed.

Price history

30D 90D 180D All

B850M-X WiFi R2.0

August 24, 20265 capturestoday · $119.99

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

Specifications

Socket: AM5
Chipset: B850
Form factor: Micro-ATX
Memory type: DDR5
RAM slots: 2
Max memory: 128 GB
M.2 slots: 2
PCIe x16 slots: 2
PCIe version: 5.0
SATA ports: 4
LAN speed: 2.5 GbE
USB-C ports: 1
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.

ASRock