Technical Snapshot

The ASRock B850 Pro RS is a ATX motherboard based on the B850 chipset for AMD AM5 processors. It supports DDR5 memory with up to 128 GB across 4 DIMM slots.

Use Case
Desktop PC builds, gaming, workstation
Compatibility
AMD AM5 processors
Category
ATX Motherboard — B850 Chipset
ASRock B850 Pro RS
ASROCK PRODUCT
ASROCK

B850 Pro RS

B850 · AMD AM5 · ATX · DDR5 up to 128 GB

CPU socket: AMD AM5. Compatible with AMD Ryzen desktop processors.
SocketAMD AM5
Maximum supported memory: 128 GB DDR5 across 4 DIMM slots.
Max RAM128 GB
B850 chipset with PCIe and M.2 expansion slots.
ChipsetB850
ATX form factor — standard tower compatible.
Form FactorATX
MPNB850 Pro RS
CategoryMotherboards
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Full Specifications

ChipsetB850
SocketAMD AM5
Form FactorATX
Memory TypeDDR5
DIMM Slots4
Max RAM128 GB
SeriesPro

Support & Downloads

Latest Firmware & DriversVisit ASRock for the latest updates
ASRock Downloads →
ASRock B850 Pro RS DocumentationPDF · Installation guide and specifications
ASRock Support →
← Back to ASRock Motherboard Catalog

Frequently Asked Questions

What socket does the ASRock B850 Pro RS use?

The ASRock B850 Pro RS uses the AMD AM5 socket, compatible with AMD Ryzen desktop processors.

How much RAM does the ASRock B850 Pro RS support?

The ASRock B850 Pro RS supports up to 128 GB of DDR5 memory across 4 DIMM slots.

Does the ASRock B850 Pro RS have Wi-Fi?

No, the ASRock B850 Pro RS does not include built-in Wi-Fi.

How many M.2 slots does the ASRock B850 Pro RS have?

M.2 slot information is not currently available for this model.

What chipset does the ASRock B850 Pro RS use?

The ASRock B850 Pro RS is built on the B850 chipset, offering ATX form factor design for AMD platforms.

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