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header-product Motherboard ASUS ROG STRIX B550-A GAMING AMD B550 Socket AM4 ATX
141.99 €

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

Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0 Photo 1
Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0 Photo 2
Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0 Photo 3
Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0 Photo 4
Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0 Photo 1
Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0 Photo 2
Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0 Photo 3
Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0 Photo 4
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Motherboard ASUS ROG STRIX B550-A GAMING AMD B550 Socket AM4 ATX

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Short 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.
Available at price 141.99 €: 51 pcs.
Total available for order: 350 pcs.
Warranty: 2 Years
SKU: 3644123
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1.79 €

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From 4.99 € (Weight: 1.55 kg)
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Product information

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

BIOS type: The BIOS (Basic Input/Output System) initializes and tests system hardware components, and loads a bootloader or an operating system from a mass memory device. The BIOS additionally provides abstraction layer for the hardware, i.e. a consistent way for application programs and operating systems to interact with the keyboard, display, and other input/output devices. There are several types of BIOS, including the motherboard ROM BIOS, video BIOS, drive controller BIOS, network adapter BIOS, and SCSI adapter BIOS.
UEFI
Audio output channels: An audio output channel is an electric circuit which acts as a path for a signal produced by a device. A device may have several audio output channels.
7.1
Motherboard chipset: The chipset connects the microprocessor to the rest of the motherboard.
AMD B550
Motherboard chipset family: The category of motherboard chipset e.g. Intel, AMD.
AMD
Motherboard form factor: Design of the motherboard (ATX, BTX etc).
ATX
Component for: What this product is used as a part of (component for).
PC
Wi-Fi: Popular technology that allows an electronic device to exchange data or connect to the internet wirelessly using radio waves.
No
HDMI ports quantity: The number of sockets (ports) for HDMI connections. HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transferring uncompressed video data and compressed/uncompressed digital audio data from a HDMI-compliant device ("the source device") to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for existing analog video standards.
1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity:
2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:
4
USB 2.0 ports quantity: Number of USB 2.0 ports (connecting interfaces) in the device. USB 2.0 was released in April 2000 (now called "Hi-Speed"), adding higher maximum signaling rate of 480 Mbit/s (effective throughput up to 35 MB/s or 280 Mbit/s), USB 2.0 ports are usually black.
2
Number of SATA III connectors: Serial ATA (Advanced Technology Attachment) (SATA) is a computer bus interface that connects host bus adapters to mass storage devices such as hard disk drives and optical drives. SATA III (revision 3.x) interface, formally known as SATA 6Gb/s, is a third generation SATA interface running at 6.0Gb/s. The bandwidth throughput, which is supported by the interface, is up to 600MB/s. This interface is backwards compatible with SATA 3 Gb/s interface.
6
USB 3.2 Gen 2 (3.1 Gen 2) connectors:
1
USB 3.2 Gen 1 (3.1 Gen 1) connectors: This is a connector (normally attached to a cable) for USB 3.0. USB 3.0 is the second major revision of the Universal Serial Bus (USB) standard for computer connectivity. First introduced in 2008, USB 3.0 adds a new transfer mode called "SuperSpeed," (distinguishable from USB 2.0 by either the blue colour of the port or the initials SS) capable of transferring data at up to 5Gbit/s—more than ten times as fast as the 480 Mbit/s top speed of USB 2.0.
0
USB 2.0 connectors: The end of a cable with a USB 2.0 connector. USB 2.0 was released in April 2000 (now called "Hi-Speed"), adding higher maximum signaling rate of 480 Mbit/s (effective throughput up to 35 MB/s or 280 Mbit/s), in addition to the "USB 1.x Full Speed" signaling rate of 12 Mbit/s. USB 2.0 connectors are usually colored black.
2
Maximum internal memory: The maximum internal memory which is available in the product.
128 GB
Number of memory slots:
4
Processor socket: Mechanical component(s) that provides mechanical and electrical connections between a microprocessor and a printed circuit board (PCB). This allows the processor to be replaced without soldering.
Socket AM4
Processor manufacturer: The manufacturer that produced the processor.
AMD
Parallel processing technology support: Parallel processing technology is the simultaneous use of more than one CPU or processor core to execute a program or multiple computational threads. Ideally, parallel processing makes programs run faster because there are more engines (CPUs or Cores) running it. In practice, it is often difficult to divide a program in such a way that separate CPUs or cores can execute different portions without interfering with each other. Most computers have just one CPU, but some models have several, and multi-core processor chips are becoming the norm. There are even computers with thousands of CPUs.
2-Way CrossFireX
Supported storage drive interfaces:
PCI Express 3.0
Supported memory types: Types of memory which can be used with the product.
DDR4-SDRAM
Compatible processor series: A processor which is compatible with this device, belongs to a 'series' which is part of 'family' e.g Celeron D, Celeron G, Celeron M, or, in some cases, is the same as 'family'.
AMD Ryzen™ 3
All features

Other features

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.945 kg
mSATA ports quantity:
0

Weight & dimensions

Height: The measurement of the product from head to foot or from base to top.
68 mm
Depth: The distance from the front to the back of something.
244 mm
Width: The measurement or extent of something from side to side.
305 mm

Logistics data

Harmonized System (HS) code:
84733020

BIOS

BIOS memory size:
256 Mbit
BIOS type: The BIOS (Basic Input/Output System) initializes and tests system hardware components, and loads a bootloader or an operating system from a mass memory device. The BIOS additionally provides abstraction layer for the hardware, i.e. a consistent way for application programs and operating systems to interact with the keyboard, display, and other input/output devices. There are several types of BIOS, including the motherboard ROM BIOS, video BIOS, drive controller BIOS, network adapter BIOS, and SCSI adapter BIOS.
UEFI

Expansion slots

Number of M.2 (M) slots:
2
PCI Express x16 slots:
3
PCI Express x1 (Gen 3.x) slots:
3

Features

Windows operating systems supported: Windows vesions wich can be used with the device.
Windows 10 Enterprise x64
Product colour: The colour e.g. red, blue, green, black, white.
Silver, Black
Audio output channels: An audio output channel is an electric circuit which acts as a path for a signal produced by a device. A device may have several audio output channels.
7.1
Motherboard chipset: The chipset connects the microprocessor to the rest of the motherboard.
AMD B550
Motherboard chipset family: The category of motherboard chipset e.g. Intel, AMD.
AMD
Motherboard form factor: Design of the motherboard (ATX, BTX etc).
ATX
Component for: What this product is used as a part of (component for).
PC

Network

Wi-Fi: Popular technology that allows an electronic device to exchange data or connect to the internet wirelessly using radio waves.
No
Ethernet LAN: An Ethernet LAN (Local Area Network) interface is present, for a wired conection via a cable.
No

Rear panel I/O ports

DisplayPort version:
1.2
DisplayPorts quantity: Number of DisplayPorts. A DisplayPort is a digital display interface developed by the Video Electronics Standards Association (VESA). The interface is primarily used to connect a video source to a display device such as a computer monitor, though it can also be used to carry audio, USB, and other forms of data.
1
HDMI ports quantity: The number of sockets (ports) for HDMI connections. HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transferring uncompressed video data and compressed/uncompressed digital audio data from a HDMI-compliant device ("the source device") to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for existing analog video standards.
1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity:
2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:
4
USB 2.0 ports quantity: Number of USB 2.0 ports (connecting interfaces) in the device. USB 2.0 was released in April 2000 (now called "Hi-Speed"), adding higher maximum signaling rate of 480 Mbit/s (effective throughput up to 35 MB/s or 280 Mbit/s), USB 2.0 ports are usually black.
2

Internal I/O

Number of SATA connectors:
0
Number of SATA II connectors: Serial ATA (Advanced Technology Attachment) (SATA) is a computer bus interface that connects host bus adapters to mass storage devices such as hard disk drives and optical drives. SATA II (revision 2.x) interface, formally known as SATA 3Gb/s, is a second generation SATA interface running at 3.0 Gb/s. The bandwidth throughput, which is supported by the interface, is up to 300MB/s.
0
Number of SATA III connectors: Serial ATA (Advanced Technology Attachment) (SATA) is a computer bus interface that connects host bus adapters to mass storage devices such as hard disk drives and optical drives. SATA III (revision 3.x) interface, formally known as SATA 6Gb/s, is a third generation SATA interface running at 6.0Gb/s. The bandwidth throughput, which is supported by the interface, is up to 600MB/s. This interface is backwards compatible with SATA 3 Gb/s interface.
6
USB 3.2 Gen 2 (3.1 Gen 2) connectors:
1
USB 3.2 Gen 1 (3.1 Gen 1) connectors: This is a connector (normally attached to a cable) for USB 3.0. USB 3.0 is the second major revision of the Universal Serial Bus (USB) standard for computer connectivity. First introduced in 2008, USB 3.0 adds a new transfer mode called "SuperSpeed," (distinguishable from USB 2.0 by either the blue colour of the port or the initials SS) capable of transferring data at up to 5Gbit/s—more than ten times as fast as the 480 Mbit/s top speed of USB 2.0.
0
USB 2.0 connectors: The end of a cable with a USB 2.0 connector. USB 2.0 was released in April 2000 (now called "Hi-Speed"), adding higher maximum signaling rate of 480 Mbit/s (effective throughput up to 35 MB/s or 280 Mbit/s), in addition to the "USB 1.x Full Speed" signaling rate of 12 Mbit/s. USB 2.0 connectors are usually colored black.
2

Graphics

On-board graphics card: Graphics hardware which is built into the motherboard or CPU, as opposed to a separate graphics adapter (video card). On-board graphics uses CPU and RAM for graphics processing.
No
Parallel processing technology support: Parallel processing technology is the simultaneous use of more than one CPU or processor core to execute a program or multiple computational threads. Ideally, parallel processing makes programs run faster because there are more engines (CPUs or Cores) running it. In practice, it is often difficult to divide a program in such a way that separate CPUs or cores can execute different portions without interfering with each other. Most computers have just one CPU, but some models have several, and multi-core processor chips are becoming the norm. There are even computers with thousands of CPUs.
2-Way CrossFireX

Storage controllers

RAID levels: RAID is a storage technology that combines multiple disk drive components into a logical unit for the purposes of data redundancy and performance improvement. Data is distributed across the drives in one of several ways, referred to as RAID levels, depending on the specific level of redundancy and performance required.
10, 1
RAID support: The device uses RAID, which is a storage technology that combines multiple disk drive components into a logical unit for the purposes of data redundancy and performance improvement. Data is distributed across the drives in one of several ways, referred to as RAID levels, depending on the specific level of redundancy and performance required.
Yes
Supported storage drive interfaces:
PCI Express 3.0

Memory

Maximum internal memory: The maximum internal memory which is available in the product.
128 GB
Supported memory clock speeds: Memory clock speed is the time it takes for a computer to complete basic operations. It refers to the computer's processing speed and is measured in hertz. It is however not such a reliable measure of a computer's speed as it doesn't take into account other factors like RAM and cache size.
4133, 2133, 2400, 2666, 2800, 3000, 3200, 3466, 3600, 3866, 4600, 4400, 4000
ECC сompatibility:
ECC
Memory slots type: A memory slot, also known as a memory socket or RAM slot, is what allows computer memory (RAM) to be inserted into the computer. Depending on the motherboard, there will usually be 2 to 4 memory slots (sometimes more on high-end motherboards). The most common types of RAM are SDRAM and DDR for desktop computers and SODIMM for laptop computers, each having various types and speeds.
DIMM
Number of memory slots:
4
Supported memory types: Types of memory which can be used with the product.
DDR4-SDRAM

Processor

Compatible processor series: A processor which is compatible with this device, belongs to a 'series' which is part of 'family' e.g Celeron D, Celeron G, Celeron M, or, in some cases, is the same as 'family'.
AMD Ryzen™ 3
Processor socket: Mechanical component(s) that provides mechanical and electrical connections between a microprocessor and a printed circuit board (PCB). This allows the processor to be replaced without soldering.
Socket AM4
Processor manufacturer: The manufacturer that produced the processor.
AMD

Description

Machine translation. Load original

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EU57 51 18.08.2026 Best delivery
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How much does the Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0 cost, and is it available for purchase?

The price is 141.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 350 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 18.08.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

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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. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Motherboard ASUS ROG STRIX B550-A GAMING, 90MB15J0-M0EAY0 online, and the application process is as simple as possible:
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How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: bios type, audio output channels, motherboard chipset, motherboard chipset family, motherboard form factor, component for, wi-fi, hdmi ports quantity, usb 3.2 gen 2 (3.1 gen 2) type-a ports quantity, usb 3.2 gen 1 (3.1 gen 1) type-a ports quantity, usb 2.0 ports quantity, number of sata iii connectors, usb 3.2 gen 2 (3.1 gen 2) connectors, usb 3.2 gen 1 (3.1 gen 1) connectors, usb 2.0 connectors, maximum internal memory, number of memory slots, processor socket, processor manufacturer, parallel processing technology support, supported storage drive interfaces, supported memory types, compatible processor series, 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.
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