Technical Snapshot

The asus PRIME B550-PLUS is a ATX motherboard based on the B550 chipset for AMD AM4 processors. It supports DDR4 memory with up to 128 GB across 4 DIMM slots.

Use Case
Desktop PC builds, gaming, workstation
Compatibility
AMD AM4 processors
Category
ATX Motherboard — B550 Chipset
asus PRIME B550-PLUS
ASUS PRODUCT
ASUS

asus PRIME B550-PLUS

B550 · AMD AM4 · ATX · DDR4 up to 128 GB

CPU socket: AMD AM4. Compatible with AMD Ryzen desktop processors.
SocketAMD AM4
Maximum supported memory: 128 GB DDR4 across 4 DIMM slots.
Max RAM128 GB
B550 chipset with PCIe and M.2 expansion slots.
ChipsetB550
ATX form factor — standard tower compatible.
Form FactorATX
MPN90MB14U0-M0EAY0
CategoryMotherboards
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Price Trend

Last updated: 2026-07-05

Note: this chart shows historical reference pricing for trend insight only — it is not a live quote. To place an order or get current pricing, please contact us or your dedicated sales manager.

Full Specifications

ChipsetB550
SocketAMD AM4
Form FactorATX
Memory TypeDDR4
DIMM Slots4
Max RAM128 GB
SeriesPRIME

Support & Downloads

Latest Firmware & DriversVisit asus for the latest updates
asus Downloads →
asus PRIME B550-PLUS DocumentationPDF · Installation guide and specifications
asus Support →
← Back to asus Motherboard Catalog

Frequently Asked Questions

What socket does the asus PRIME B550-PLUS use?

The asus PRIME B550-PLUS uses the AMD AM4 socket, compatible with AMD Ryzen desktop processors.

How much RAM does the asus PRIME B550-PLUS support?

The asus PRIME B550-PLUS supports up to 128 GB of DDR4 memory across 4 DIMM slots.

Does the asus PRIME B550-PLUS have Wi-Fi?

No, the asus PRIME B550-PLUS does not include built-in Wi-Fi.

How many M.2 slots does the asus PRIME B550-PLUS have?

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

What chipset does the asus PRIME B550-PLUS use?

The asus PRIME B550-PLUS is built on the B550 chipset, offering ATX form factor design for AMD platforms.

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