Spec score 7.6
AM4, mATX, DDR4, 1 PCIe x16 slots
+Compact microATX form factor
+DDR4 memory with ECC support
+PCIe 4.0 support
−Single PCIe x16 slot limits graphics card expansion
$99.00-17%List: $119.99
as of 11/04/2026 12:09 PST - DetailsProduct details
ASUS Prime B550M-A WiFi II AMD Micro ATX DDR4 Motherboard with PCIe 4.0, WiFi 6, ECC Memory, HDMI 2.1, RGB Header
$99.00as of 11/04/2026 12:09 PST - Details
View on AmazonSpec score7.6
Pros
+Compact microATX form factor
+DDR4 memory with ECC support
+PCIe 4.0 support
+Two M.2 slots for SSD storage
+Wi-Fi 6 built in
Cons−Single PCIe x16 slot limits graphics card expansion
Compared with the 1 motherboards on this page−1 pcie x16 slots: 20 of the 32 here have more pcie x16 slots
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