---
product_id: 405958738
title: "ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2"
brand: "asus"
price: "¥47312"
currency: JPY
in_stock: true
reviews_count: 13
category: "Asus"
url: https://www.desertcart.jp/products/405958738-asus-prime-b550m-a-wifi-ii-amd-b550-am4-micro
store_origin: JP
region: Japan
---

# PCIe 4.0 ultra-fast interface Dual M.2 slots for lightning-fast storage Wi-Fi 6 for blazing wireless speeds ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2

**Brand:** asus
**Price:** ¥47312
**Availability:** ✅ In Stock

## Summary

> 🚀 Power your productivity with ASUS PRIME B550M-A WIFI II — where speed meets style.

## Quick Answers

- **What is this?** ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2 by asus
- **How much does it cost?** ¥47312 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/405958738-asus-prime-b550m-a-wifi-ii-amd-b550-am4-micro)

## Best For

- asus enthusiasts

## Why This Product

- Trusted asus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Massive Memory Support:** Up to 128GB DDR4 RAM slots to power through multitasking and heavy workloads.
- • **Customizable Aura Sync RGB:** Sync your setup’s lighting with onboard Gen 2 headers for a sleek, professional vibe.
- • **Comprehensive Cooling System:** Advanced VRM and PCH heatsinks plus hybrid fan headers keep your rig cool under pressure.
- • **Next-Gen Speed with PCIe 4.0:** Experience cutting-edge data transfer rates that future-proof your build.
- • **Seamless Wireless Connectivity:** Wi-Fi 6 ensures ultra-low latency and stable connections for work and play.

## Overview

The ASUS PRIME B550M-A WIFI II is a versatile Micro ATX motherboard designed for AMD Ryzen processors, featuring PCIe 4.0 support, dual M.2 slots, Wi-Fi 6 connectivity, and Aura Sync RGB lighting. It supports up to 128GB DDR4 RAM and offers comprehensive cooling solutions, making it an ideal choice for professionals seeking reliable performance and future-ready technology.

## Description

From the manufacturer PRIME B550M-A WIFI II ASUS is among the World's Most Admired Companies of Fortune magazine. Engaged in creating smart products for today's and future everyday life, its full range includes Zenbo, Zenfone, ZenBook, IT devices and components dedicated to augmented & virtual reality and the Internet of Things. With more than 16,000 employees and 5,000 engineers in R&D department, ASUS earned 4,511 worldwide awards last year and ended with revenues of USD 13.3 billion. AMD B550 (Ryzen AM4) Micro ATX Motherboard with Dual M.2, PCIe 4.0, Wi-Fi 6, 1Gb Ethernet, HDMI, DVI-D, D-Sub, SATA 6Gbps, USB 3.2 Gen 2 Type-A and Aura Sync RGB Lighting Support AMD AM4 socket: Ready for Ryzen 5000 Series Desktop Processors/5000 G/Series 4000 G/Series 3000 Series Full Cooling: VRM Heatsink, PCH Heatsink, Hybrid Fan Connectors and Fan Xpert 2 Utility Lightning-fast connectivity: Dual M.2, PCIe 4.0, Wi-Fi 6, 1Gb Ethernet, support USB 3.2 Gen 2 Type-A Aura Sync RGB Lighting: Integrated addressable Gen 2 connector and RGB connectors for RGB LED strips, easy synchronization with Aura Sync compatible devices VRM Heatsink and Thermal Pad A massive VRM heat sink and high-quality thermal pads improve heat transfer from MOSFETs and inductances to improve cooling performance. Effective cooling The Prime B550 Series offers the most comprehensive cooling options ever, configurable via Fan Xpert 2+ or UEFI BIOS PCIe 4.0 M.2 (up to 64 Gbps) l Dual PCIe 4.0 M.2 slots supports up to 22110 and provides NVMe SSD RAID support for incredible performance boosts. Build a RAID configuration with a PCIe 4.0 storage device to enjoy fast data transfer rates on AMD Ryzen 5000 Series / 3000 Series processors. Wi-Fi 6 WiFi 6 is compatible with the 802.11ax standard and pushes theoretical peak bandwidth up to an incredible value of as much as 2.4 Gbps. The most important thing for end users is optimization for efficient operation on crowded networks with a lot of traffic. Pair your motherboard with ASUS WiFi 6 routers to take full advantage of the network's potential. USB 3.2 Gen 2 Type-A Numerous USB ports support the many peripherals usually connected to high-end rigs. A rear panel with USB Type-A connectors with fast USB 3.2 Gen 2 connectivity for compatible devices is also included. Aura Sync A system for fans with excellent tuning and aggressive aesthetics. ASUS Aura offers full RGB control with a variety of functional presets for integrated LEDs and strips connected to the RGB headers on the board. Everything can be synchronized with an ever-growing portfolio of Aura compatible hardware Addressable Gen 2 connector Gen 2 connectors can now detect the number of LEDs in RGB devices compatible with this standard, allowing the software to automatically adapt light effects to specific devices. The new connectors also offer compatibility with existing Aura RGB products. Precise Digital Power Control The Digi+ Voltage Regulation Module (VRM) provides real-time control of voltage statism, automatically switching frequency and energy efficiency settings. It also allows you to fine-tune the CPU for maximum stability and performance. SafeSlot Core SafeSlot Core is ASUS's new PCIe slot. Featuring a stronger design is anchored to the motherboard by a specially designed hook, Safeslot Core offers a firmer grip of connected devices and superior torsion resistance than standard slots.

Review: Nice general purpose motherboard - My PC, used to control electronic equipment, failed and I needed to get something working fast. I decided to swap the motherboard, retaining memory, processor and disks. After some research, this Asus seemed to be a good solution and I have not been disappointed. It's a good, versatile workhorse with a flexible BIOS - not a flashy games platform. The build process went smoothly and it was up and running in a couple of hours. There's a lot of scope for tuning and I'm still experimenting to find a decent combination of performance and reliability.
Review: Great Micro ATX Motherboard! - Solid Mobo for the money. Always nice to have an included Wi-Fi antenna. Every connector was easy to access, and has been working flawlessly since purchasing it. Would highly recommend!

## Features

- AMD AM4 Socket: Ready for Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
- Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers, and Fan Xpert 2+ utility
- Ultrafast Connectivity: Dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A support
- Aura Sync RGB Lighting: Onboard addressable Gen 2 header and RGB headers for RGB LED strips, easily synced with Aura Sync-capable hardware

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09LVQXHBG |
| Available Memory Slots | 4 |
| Best Sellers Rank | 2,750 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 11 in Motherboards |
| Box Contents | Camera Body |
| Brand | ASUS |
| Brand Name | ASUS |
| CPU Model | AMD A4 |
| CPU socket | Socket AM4 |
| Chipset Family | AMD |
| Chipset Type | AMD B550 |
| Chipset type | AMD B550 |
| Compatible Devices | Handy |
| Compatible Processors | AMD Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors |
| Compatible devices | Handy |
| Compatible processors | AMD Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors |
| Customer Reviews | 4.3 out of 5 stars 617 Reviews |
| Global Trade Identification Number | 04711081309741 |
| Graphics Card Interface | PCI, PCI Express |
| Item Dimensions L x W x H | 24.4L x 4W x 24.4H centimetres |
| Item Type Name | ASUS Prime B550M-A WiFi II Gaming Motherboard Socket Ryzen AM4 (AMD B550, mATX, PCIe 4.0, WiFi6, Dual M.2, SATA 6Gbit/s, Aura Sync) |
| Item Weight | 646 Grams |
| Main Power Connector Type | 24-Pin |
| Manufacturer | Asus |
| Manufacturer Part Number | 90MB19X0-M0EAY0 |
| Memory Clock Speed | 4866 MHz |
| Memory Storage Capacity | 128 GB |
| Model Name | PRIME B550M-A WIFI II |
| Model Number | 90MB19X0-M0EAY0 |
| Number of Ethernet Ports | 1 |
| Number of Ports | 17 |
| Platform | Windows 10 |
| Processor Socket | Socket AM4 |
| Product Warranty | 3 Years Manufacturer |
| RAM Memory Technology | DDR4 |
| RAM memory technology | DDR4 |
| Ram Memory Maximum Size | 128 GB |
| System Bus Standard Supported | 4XSATA 6Gb/s |
| Total HDMI Port | 1 |
| Total PCIe Ports | 3 |
| Total SATA Ports | 4 |
| Total USB Ports | 6 |
| UPC | 195553309745 |
| USB 2.0 | 2 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** ASUS
- **CPU model:** AMD A4
- **CPU socket:** Socket AM4
- **Chipset type:** AMD B550
- **Compatible devices:** Handy
- **Compatible processors:** AMD Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
- **Memory clock speed:** 4866 MHz
- **Model name:** PRIME B550M-A WIFI II
- **Platform:** Windows 10
- **RAM memory technology:** DDR4

## Images

![ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2 - Image 1](https://m.media-amazon.com/images/I/81XfxEDurJL.jpg)
![ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2 - Image 2](https://m.media-amazon.com/images/I/91xnZMfZEKL.jpg)
![ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2 - Image 3](https://m.media-amazon.com/images/I/81ddUCIB7HL.jpg)
![ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2 - Image 4](https://m.media-amazon.com/images/I/81YT2KhhQ1L.jpg)
![ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2 - Image 5](https://m.media-amazon.com/images/I/81Dxoac7WsL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice general purpose motherboard
*by M***N on 15 April 2024*

My PC, used to control electronic equipment, failed and I needed to get something working fast. I decided to swap the motherboard, retaining memory, processor and disks. After some research, this Asus seemed to be a good solution and I have not been disappointed. It's a good, versatile workhorse with a flexible BIOS - not a flashy games platform. The build process went smoothly and it was up and running in a couple of hours. There's a lot of scope for tuning and I'm still experimenting to find a decent combination of performance and reliability.

### ⭐⭐⭐⭐⭐ Great Micro ATX Motherboard!
*by M***. on 26 February 2024*

Solid Mobo for the money. Always nice to have an included Wi-Fi antenna. Every connector was easy to access, and has been working flawlessly since purchasing it. Would highly recommend!

### ⭐⭐⭐⭐ Solid motherboard with easy installation, though Wi-Fi setup on Windows 11 needs work
*by D***N on 9 October 2025*

I found the ASUS PRIME B550M-A WiFi II very straightforward to install. All the headers and mounting points lined up perfectly, and it posted first time with no issues. Performance has been rock solid so far, with stable power delivery and good BIOS options for tweaking. The only downside I ran into was setting up the Wi-Fi under Windows 11. The adapter wasn’t recognised automatically, and Windows Update didn’t pull the driver. I had to visit the Realtek website and download it manually, after which everything worked fine. Once configured, the board has been completely reliable. It’s a great choice for a mid-range build, but be prepared to handle the Wi-Fi driver manually if you’re installing Windows 11.

## Frequently Bought Together

- ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2
- AMD Ryzensets 5 5600X Processor (6 Cores/12Threads, 65W TDP, AM4 Socket, 35MB Cache, up to 4.6 GHz Max Boost, Wraith Stealth Cooler)
- Corsair VENGEANCE LPX DDR4 RAM 16GB (2x8GB) 3200MHz CL16 Intel XMP 2.0 Computer Memory - Black (CMK16GX4M2B3200C16)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-06-22*