# Motherboard ASUS ROG STRIX B550-A GAMING AMD B550 Socket AM4 ATX

**URL:** https://aio.lv/en/product--asus-90mb15j0-m0eay0--3644123
**Data updated:** 2025-12-17 13:44 (EET)
**Category:** Motherboards
**Manufacturer:** Asus
**Manufacturer code:** 90MB15J0-M0EAY0
**EAN:** 4718017826594
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 136.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 112.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--asus-90mb15j0-m0eay0--3644123

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Tuesday | free |
| Pickup points | 03.07.2026 | 1.89 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

The ASUS ROG STRIX B550-A GAMING motherboard is designed for AMD Ryzen™ 3 processors with Socket AM4. It supports DDR4-SDRAM memory up to 128 GB and features DIMM slots. With PCI Express 3.0 interfaces and RAID support for levels 0, 1, and 10, it ensures high-speed data transfer and storage options. The motherboard also supports 2-Way CrossFireX for enhanced graphics performance, making it ideal for gaming PCs.

## Long description

ASUS ROG STRIX B550-A GAMING is an ATX motherboard for Socket AM4 designed to support 3rd Gen AMD Ryzen™ processors. Built on the AMD B550 chipset, it supports up to 128 GB DDR4 memory across four DIMM slots, provides PCIe® 4.0-ready features for high-speed peripherals, and includes robust power delivery, comprehensive cooling controls and a pre-mounted I/O shield. The board combines performance-oriented engineering with a distinctive silver-and-white, cyberpunk-inspired design.
Advantages
The ROG Strix B550-A Gaming offers PCIe® 4.0-ready connectivity, enhanced audio and network features, and extensive cooling options configurable via Fan Xpert 4 or UEFI BIOS. ASUS OptiMem II and a daisy-chain trace layout improve memory signal integrity and overclocking potential. Certified compatibility testing and ROG software utilities such as GameFirst VI, Armoury Crate and RAMCache III provide easier system setup, network optimization and faster game load times.
Suitable for
Gaming PCs using AMD Ryzen™ processors (Socket AM4)
Builders seeking PCIe® 4.0-capable platforms for fast storage and GPUs
Systems with up to 128 GB DDR4 memory for multitasking and content creation
Users who want centralized control of RGB and device settings via Armoury Crate
Key specifications
Form factor: ATX
Chipset: AMD B550
Processor socket: Socket AM4 (supports 3rd Gen Ryzen)
Memory: 4 x DDR4 DIMM slots, maximum 128 GB
PCI Express: PCIe® 4.0-ready (platform dependent), multiple PCIe slots including PCIe 3.0 x1 interfaces
Storage and RAID: Supports RAID 0, 1, 10
Multi-GPU: 2-Way CrossFireX support
Weight: 0.945 kg
How to use
Install the motherboard into an ATX-compatible case and connect a compatible AM4 processor, DDR4 memory modules (up to 128 GB across four slots), storage devices and power supply according to the manual. Use the pre-mounted I/O shield to simplify rear I/O installation. Configure cooling profiles and fan curves in Fan Xpert 4 or the UEFI BIOS, and adjust memory and CPU settings via the ROG UEFI for required performance. Install ASUS drivers and Armoury Crate to manage RGB, download updates and register the product.
Usage recommendations
For stable operation and best performance, pair the ROG STRIX B550-A GAMING with compatible 3rd Gen AMD Ryzen processors, high-quality DDR4 memory modules listed in the QVL, and a power supply that meets your component power requirements. Update the UEFI BIOS and ASUS utilities regularly to ensure compatibility and network/firmware improvements.

## Specifications

### Features

| Feature | Value |
|---|---|
| Motherboard form factor | ATX |
| Motherboard chipset | AMD B550 |
| Component for | PC |
| Audio output channels | 7.1 |
| Windows operating systems supported | Windows 10 Enterprise x64 |
| Motherboard chipset family | AMD |

| Feature | Value |
|---|---|
| Product colour | Silver, Black |

### Processor

| Feature | Value |
|---|---|
| Processor manufacturer | AMD |
| Compatible processor series | AMD Ryzen 3 |
| Processor socket | Socket AM4 |

### Memory

| Feature | Value |
|---|---|
| Number of memory slots | 4 |
| Maximum internal memory | 128 GB |
| Supported memory types | DDR4-SDRAM |
| Supported memory clock speeds | 4000, 3866, 3600, 3466, 3200, 3000, 2800, 2666, 2400, 2133, 4133, 4400, 4600 |
| Memory slots type | DIMM |
| ECC сompatibility | ECC |

### Expansion slots

| Feature | Value |
|---|---|
| PCI Express x16 slots | 3 |
| PCI Express x1 (Gen 3.x) slots | 3 |
| Number of M.2 (M) slots | 2 |

### Graphics

| Feature | Value |
|---|---|
| Parallel processing technology support | 2-Way CrossFireX |
| On-board graphics card | No |

### Network

| Feature | Value |
|---|---|
| Ethernet LAN | No |
| Wi-Fi | No |

### Internal I/O

| Feature | Value |
|---|---|
| USB 2.0 connectors | 2 |
| Number of SATA III connectors | 6 |
| USB 3.2 Gen 2 (3.1 Gen 2) connectors | 1 |

### Rear panel I/O ports

| Feature | Value |
|---|---|
| USB 2.0 ports quantity | 2 |
| HDMI ports quantity | 1 |
| DisplayPorts quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 2 |

### Storage controllers

| Feature | Value |
|---|---|
| RAID levels | 1, 10 |
| RAID support | Yes |
| Supported storage drive interfaces | PCI Express 3.0 |

### BIOS

| Feature | Value |
|---|---|
| BIOS memory size | 256 Mbit |
| BIOS type | UEFI |

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 305 mm |
| Depth | 244 mm |

### Other features

| Feature | Value |
|---|---|
| Weight | 0.945 kg |
| Height | 68 mm |
| DisplayPort version | 1.2 |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84733020 |

## FAQ

### How much does the Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0 cost, and is it available for purchase?

The price is 136.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 561 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Tuesday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Asus products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Asus service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: motherboard form factor, motherboard chipset, component for, processor socket, number of memory slots, maximum internal memory, pci express x1 (gen 3.x) slots, weight, supported memory types, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/3644123/65417907_large.webp