---
product_id: 265450383
title: "Asus Prime B550M-A, 3rd Gen Ryzen Micro ATX Motherboard, PCIe 4.0, WiFi 6, ECC Memory, 1Gb LAN, HDMI 2.1/D-Sub, Addressable Gen 2 RGB Header and Aura Sync- 90MB14I0-M0EAY0"
brand: "asus"
price: "¥45880"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/265450383-asus-prime-b550m-a-3rd-gen-ryzen-micro-atx-motherboard
store_origin: JP
region: Japan
---

# PCIe 4.0 ultra-speed Aura Sync RGB lighting Dual M.2 slots for NVMe SSDs Asus Prime B550M-A, 3rd Gen Ryzen Micro ATX Motherboard, PCIe 4.0, WiFi 6, ECC Memory, 1Gb LAN, HDMI 2.1/D-Sub, Addressable Gen 2 RGB Header and Aura Sync- 90MB14I0-M0EAY0

**Brand:** asus
**Price:** ¥45880
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Your Next-Level Build with ASUS PRIME B550M-A!

## Quick Answers

- **What is this?** Asus Prime B550M-A, 3rd Gen Ryzen Micro ATX Motherboard, PCIe 4.0, WiFi 6, ECC Memory, 1Gb LAN, HDMI 2.1/D-Sub, Addressable Gen 2 RGB Header and Aura Sync- 90MB14I0-M0EAY0 by asus
- **How much does it cost?** ¥45880 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/265450383-asus-prime-b550m-a-3rd-gen-ryzen-micro-atx-motherboard)

## 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

- • **Aura Sync RGB Headers:** Customize your rig’s vibe with addressable Gen 2 RGB headers, perfectly syncing with your Aura ecosystem.
- • **Seamless Connectivity Suite:** Experience lag-free networking with 1 Gb Ethernet and USB 3.2 Gen 2 Type-A ports for rapid data transfer.
- • **Comprehensive Cooling System:** Stay cool under pressure with dedicated VRM and PCH heatsinks plus Fan Xpert 2+ control.
- • **Blazing Fast PCIe 4.0 Support:** Unlock next-gen GPU and SSD speeds with cutting-edge PCIe 4.0 bandwidth.
- • **Dual M.2 Slots for Lightning Storage:** Maximize your build’s responsiveness with two NVMe SSD slots for ultra-low latency.

## Overview

The ASUS PRIME B550M-A is a micro ATX motherboard designed for AMD Ryzen AM4 processors, featuring PCIe 4.0 support, dual M.2 NVMe slots, and a robust cooling system. It offers versatile connectivity including 1 Gb Ethernet, USB 3.2 Gen 2, and multiple display outputs, while Aura Sync RGB headers let you personalize your setup with synchronized lighting effects.

## Description

ASUS PRIME B550M-A (AMD B550) (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, 1 Gb Ethernet, HDMI/D-Sub/DVI, SATA 6 Gbps, USB 3.2 Gen 2 Type-A, and Aura Sync RGB headers support

## Features

- AMD AM4 socket: Ready for Ryzen 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors
- Comprehensive cooling: VRM heatsink, PCH heatsink, and Fan Xpert 2+
- Ultrafast connectivity: Dual M.2, PCIe 4.0, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A
- Aura Sync RGB: Onboard addressable Gen 2 header for RGB LED strips, easily synced with Aura Sync-capable hardware

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | ASUS |
| Product Dimensions | 24.4 x 3 x 24.4 cm; 600 g |
| Batteries | 1 Lithium Ion batteries required. |
| Item model number | 90MB14I0-M0EAY0 |
| Manufacturer | AsusTek Computer Inc. |
| Series | PRIME B550M-A |
| Color | Black |
| Form Factor | Micro ATX |
| Processor Type | Intel Xeon |
| Processor Socket | Socket AM4 |
| Memory Technology | DDR4 |
| Computer Memory Type | DDR4 SDRAM |
| Maximum Memory Supported | 128 GB |
| Memory Clock Speed | 2133 MHz |
| Graphics Card Interface | PCI Express, PCI-Express x16 |
| Connectivity Type | Wi-Fi |
| Number of USB 2.0 Ports | 4 |
| Number of HDMI Ports | 1 |
| Number of Ethernet Ports | 1 |
| Wattage | 100 |
| Operating System | Windows |
| Are Batteries Included | No |
| Lithium Battery Energy Content | 220 Milliampere Hour (mAh) |
| Lithium Battery Packaging | Batteries contained in equipment |
| Lithium Battery Weight | 5 Grams |
| Number of Lithium Metal Cells | 1 |
| Item Weight | 600 g |

## Product Details

- **Brand:** ASUS
- **CPU socket:** Socket AM4
- **Compatible devices:** Desktop PC
- **Ram memory technology:** DDR4
- **Compatible processors:** AMD

## Images

![Asus Prime B550M-A, 3rd Gen Ryzen Micro ATX Motherboard, PCIe 4.0, WiFi 6, ECC Memory, 1Gb LAN, HDMI 2.1/D-Sub, Addressable Gen 2 RGB Header and Aura Sync- 90MB14I0-M0EAY0 - Image 1](https://m.media-amazon.com/images/I/81ltJhVEU3L.jpg)

## Available Options

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

## Frequently Bought Together

- ASUS Prime B550M-A AMD B550 Socket AM4 Micro ATX DDR4-SDRAM Motherboard
- AMD Ryzen 5 5600X 6-core, 12-Thread Unlocked Desktop Processor with Wraith Stealth Cooler

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**Shop now:** [https://www.desertcart.jp/products/265450383-asus-prime-b550m-a-3rd-gen-ryzen-micro-atx-motherboard](https://www.desertcart.jp/products/265450383-asus-prime-b550m-a-3rd-gen-ryzen-micro-atx-motherboard)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-25*