ASUS PRIME B550M-A WIFI II Micro-ATX Motherboard – Reliable Performance for AMD Ryzen Builds
ASUS PRIME B550M-A WIFI II Micro-ATX Motherboard – Reliable Performance for AMD Ryzen Builds is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
Shipped within 3 business days
Return Policy
| Manufacturer | Asus |
| Chipset | AMD B550 |
| Cpu socket | AM4 |
| Form factor | mATX |
| Memory slots | 4 |
| Memory type | DDR4 |
Payment & Security
Cash on delivery - Instapay
The ASUS PRIME B550M-A WIFI II is a micro-ATX motherboard engineered for AMD Ryzen 5000, 5000 G-Series, 4000 G-Series and 3000 Series processors on the AM4 platform. It combines PCIe 4.0 connectivity, dual M.2 slots, Wi-Fi 6 and DDR4 memory support up to 128 GB in a compact form factor, delivering stable performance for gaming, content creation and everyday computing.
key features
- AMD B550 Chipset with AM4 Socket - Full compatibility with Ryzen 5000/4000G/3000 series CPUs for long-term platform support.
- PCIe 4.0 x16 Slot + Dual M.2 (one PCIe 4.0) - High-bandwidth graphics and storage for faster load times and smoother gameplay.
- Integrated Wi-Fi 6 and 1 Gb Ethernet - Reliable low-latency wireless and wired networking.
- Comprehensive Cooling Design - VRM and PCH heatsinks plus Fan Xpert 2+ for sustained performance under load.
key specifications
| Feature | Specification |
|---|---|
| Form Factor | Micro-ATX |
| Chipset | AMD B550 |
| CPU Socket | AMD AM4 |
| Supported Processors | AMD Ryzen 5000 / 5000 G-Series / 4000 G-Series / 3000 Series Desktop Processors |
| Memory | 4 × DDR4 DIMM, Dual-Channel, Max. 128 GB, up to 4866 MHz (OC) |
| Expansion Slots | 1 × PCIe 4.0 x16 (x16 mode with Ryzen 5000/3000), 2 × PCIe 3.0 x1 |
| Storage | 2 × M.2 (M.2_1: PCIe 4.0 x4 & SATA; M.2_2: PCIe 3.0 x4 & SATA), 4 × SATA 6 Gb/s, RAID 0/1/10 |
| Networking | Wi-Fi 6 (2×2 802.11ax), Bluetooth 5.2, Realtek 1 Gb Ethernet with ASUS LANGuard |
| USB | Rear: 2 × USB 3.2 Gen 2 Type-A, 4 × USB 3.2 Gen 1 Type-A; Front headers for additional ports |
| Audio | Realtek ALC887/897 7.1-channel HD Audio |
| Graphics Outputs | HDMI (4K@60Hz), DVI-D, D-Sub |
| RGB | 2 × AURA RGB headers + 1 × Addressable Gen 2 header |
* Specifications may vary by region and model variant.
performance excellence
The PRIME B550M-A WIFI II delivers stable power delivery and PCIe 4.0 bandwidth that fully utilises modern Ryzen processors and high-speed NVMe storage. Digi+ VRM control and optimised memory trace layout support reliable overclocking of supported memory modules while maintaining system stability during extended gaming or productivity sessions.
user experience & comfort
ASUS Fan Xpert 2+ and hybrid fan headers allow precise thermal management with minimal noise. The intuitive UEFI BIOS offers both EZ Mode for beginners and Advanced Mode for enthusiasts, simplifying system setup and tuning.
design & build quality
A clean black PCB with stainless-steel back I/O, SafeSlot Core reinforcement and 5X Protection III features provides durability and longevity. The compact micro-ATX layout fits a wide range of cases while retaining essential expansion options.
connectivity & compatibility
- PCIe 4.0 x16 graphics slot
- Dual M.2 slots (one supporting PCIe 4.0)
- 4 × SATA 6 Gb/s ports
- Wi-Fi 6 + Bluetooth 5.2
- Realtek 1 Gb Ethernet with LANGuard
- Multiple USB 3.2 Gen 2 and Gen 1 ports
- HDMI, DVI-D and D-Sub outputs
perfect for
- Mid-range to high-end AMD Ryzen gaming builds
- Compact productivity and content-creation systems
- Users seeking reliable Wi-Fi 6 connectivity without occupying an expansion slot
- DIY builders prioritising value, stability and future-proof storage
why choose this product
The ASUS PRIME B550M-A WIFI II offers an excellent balance of modern features—PCIe 4.0, Wi-Fi 6, dual M.2 and solid cooling—in a proven micro-ATX design. It provides dependable performance and broad compatibility for AMD AM4 platforms at a competitive price point.
frequently asked questions
Q: Which processors are compatible with the ASUS PRIME B550M-A WIFI II?
A: It supports AMD Ryzen 5000 Series, 5000 G-Series, 4000 G-Series and 3000 Series desktop processors via the AM4 socket. Always verify the latest CPU support list on the official ASUS website.
Q: Does this motherboard support PCIe 4.0 graphics cards and NVMe SSDs?
A: Yes. With Ryzen 5000 or 3000 Series CPUs the primary x16 slot operates at PCIe 4.0, and the primary M.2 slot supports PCIe 4.0 x4 for high-speed NVMe storage.
