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ASUS PRIME B550M-A AC AM4 Micro ATX Motherboard

ASUS PRIME B550M-A AC AM4 Micro ATX Motherboard

Available at Newegg3.7(14 ratings)
$99.99$129.99price as of Oct 12, 2026, 04:10 PM
You save $30.00

Nice price drop to $99.99 from $129.99 if you’re building on a budget. It supports AM4 Ryzen CPUs and packs PCIe 4.0, dual M.2 slots, onboard WiFi, HDMI/D-Sub/DVI, SATA 6Gb/s, USB 3.2 Gen 2 and Aura Sync RGB for a compact micro‑ATX build.

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Product Details

Brand
ASUS
Condition
New
Availability
In Stock
Model
PRIME B550M-A AC
Chipset
AMD B550
CPU Type
Supports AMD Ryzen 5000 Series / 5000 G-Series / 4000 G-Series / 3000 Series Processors * Refer to www.asus.com for CPU support list.
ECC Supported
ECC Memory (ECC mode) support varies by CPU.
PCI Express x1
2 x PCIe 3.0 x1
CPU Socket Type
AM4
PCI Express x16
None
Buffer Supported
Un-buffered
Channel Supported
Dual Channel
Best Seller Ranking
#19 in AMD Motherboards
PCI Express 3.0 x16
1 x PCI Express 3.0 x16
PCI Express 4.0 x16
1 x PCI Express 4.0 x16* * Actual support may vary by CPU.
Number of Memory Slots
4x288pin (DDR4)
Maximum Memory Supported
128GB
Memory Performance Profile
Intel XMP 2.0
Deal Found
Oct 11, 2026

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