ASRock

B650M Pro RS Spec and Price in the United States

Name: B650M Pro RS
Brand: ASRock

AM5B650

A Micro-ATX AM5 board built on the AMD B650 chipset, with two x16-length slots led by a PCIe 4.0 primary and three M.2 slots. It fits four DDR5 DIMM slots for up to 256GB, plus four SATA ports and one rear USB Type-C port. Networking is onboard Wi-Fi with 2.5 Gigabit Ethernet.

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

$109.99at Amazon.com · captured 2026-09-15View at Amazon.com

Captured periodically and may have changed.

Price history

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B650M Pro RS

July 8, 202630 capturestoday · $109.99

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

Specifications

Socket: AM5
Chipset: B650
Form factor: Micro-ATX
Memory type: DDR5
RAM slots: 4
Max memory: 256 GB
M.2 slots: 3
PCIe x16 slots: 2
PCIe version: 4.0
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