🧠 ASUS Prime B550M-A WiFi II — Key Specs
Form Factor: Micro-ATX (compact desktop board)
Chipset: AMD B550 (modern mid-range platform)
Socket: AM4 — for AMD Ryzen CPUs (3000 / 4000 G / 5000 series)
🧩 Memory Support
✔ 4 × DDR4 DIMM slots (dual-channel)
✔ Up to 128 GB total memory
✔ Speeds up to 4866 MHz (OC) depending on RAM/CPU
🚀 Expansion & Slots
1 × PCIe 4.0 x16 for graphics card (best performance)
1 × PCIe 3.0 x16 (electrical x4) for add-ons
2 × PCIe 3.0 x1 for smaller cards
💾 Storage & RAID
✔ 2 × M.2 slots (supports NVMe SSDs)
✔ 4 × SATA 6 Gb/s ports (for HDDs/SSDs)
✔ RAID 0 / 1 / 10 supported
🌐 Connectivity
✔ Wi-Fi 6 (802.11ax) — fast wireless networking
✔ Bluetooth 5.2
✔ Realtek 1 Gb Ethernet port
✔ USB Ports:
Rear USB 3.2 Gen 2 & Gen 1 ports
Multiple USB 2.0 headers for front panel
🖥️ Display Outputs
(For APUs with integrated graphics)
✔ HDMI (4K@60Hz)
✔ DVI-D
✔ VGA / D-Sub
🔊 Audio
✔ Realtek 7.1-channel HD audio codec with shielding and premium capacitors for better sound quality
🧠 Build & Reliability Features
✔ ASUS SafeSlot Core reinforced PCIe
✔ Good VRM & heatsinks for stable power delivery
✔ Multiple fan headers + intelligent fan controls (Fan Xpert)
✔ Aura Sync RGB headers for lighting
🔄 Compatibility
➡ AMD Ryzen support:
• Ryzen 3000/5000 series desktop CPUs
• Works with 5000 G-Series & 4000 G-Series APUs too
BIOS: Usually compatible out of box with newer Ryzen CPUs; check ASUS support page for CPU list.
👍 Best For
✔ Mid-range gaming PC builds
✔ Compact HTPC or workstation
✔ Systems with Wi-Fi and Bluetooth built-in
✔ Builds using a powerful Ryzen CPU + fast storage