ASUS Prime B550M‑A AM4 M‑ATX Motherboard – DDR4 Performance

The ASUS Prime B550M‑A AM4 motherboard delivers reliable performance and flexible expandability for mainstream AMD PC builds. Built around the AMD B550 chipset, this board supports AMD Ryzen 3000, 4000 G‑Series, and 5000 Series processors, making it suitable for gaming, multimedia, and productivity tasks.

Stable DDR4 Performance for Everyday Use

With the focus keyphrase in mind, the ASUS Prime B550M‑A AM4 offers dual‑channel DDR4 memory support up to 128GB, enabling responsive multitasking and accelerated application performance. PCIe 4.0 support on the primary graphics slot ensures compatibility with modern GPUs and high‑speed NVMe storage, enhancing both gaming and content creation performance.

Connectivity and Expandability for Modern Builds

This motherboard includes comprehensive connectivity options such as USB 3.2 Gen2 Type‑A ports, HDMI, D‑Sub, and DVI‑D outputs for flexible display support. Dual M.2 slots provide room for fast NVMe SSDs, while 4× SATA 6Gb/s ports allow additional storage expansion. Built‑in Gigabit Ethernet delivers reliable wired networking for online gaming and streaming.

Customization and Cooling Features

Designed with intuitive cooling features, including VRM and chipset heatsinks plus support for ASUS Fan Xpert 2+, the ASUS Prime B550M‑A AM4 ensures solid thermal performance under load. Integrated Aura Sync RGB headers allow lighting customization that syncs with compatible components, making this board ideal for both performance builds and stylish rigs.

• SPECIFICATIONS
  Model: ASUS Prime B550M‑A AM4
  Form Factor: Micro‑ATX
  Chipset: AMD B550
  CPU Support: AMD Ryzen™ 5000 Series / 4000 G‑Series / 3000 Series Desktop Processors (Socket AM4)
• Memory:
• 4× DDR4 DIMM slots
• Dual Channel architecture
• Up to 128GB capacity
• DDR4 speeds supported (various OC profiles, depending on CPU)
• Graphics Outputs:
• HDMI
• D‑Sub
• DVI‑D
• Expansion Slots:
• 1× PCIe 4.0 x16
• 2× PCIe 3.0 x1
• Storage:
• 2× M.2 Slots (PCIe and SATA modes)
• 4× SATA 6Gb/s Ports
• Networking:
• 1Gb Ethernet (Realtek)
• USB & I/O:
• USB 3.2 Gen2 Type‑A
• USB 3.2 Gen1 and USB 2.0 ports on rear & headers
• Audio:
• 7.1‑Channel Audio with premium components
• Cooling & Features:
• VRM and PCH heatsinks
• ASUS Fan Xpert 2+ support
• Aura Sync RGB headers