ASUS PRIME B550M-A (WI-FI) DDR4 mATX Motherboard

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Prime B550M-A (Wi-Fi) 3rd Generation Ryzen ATX Motherboard from ASUS

Prime B550M-A Wi-Fi Motherboard

NEWEST ADDITION TO THE PRIME SERIES

Introducing the ASUS Prime B550M-A (Wi-Fi), Perfect for everyday users who want the same stable performance in a smaller form factor. expertly engineered to unleash the full potential of 3rd Generation AMD Ryzen processors. Ram-packed with features like the ground-breaking PCI-E 4.0 technology to give you lightning speeds, a robust power design, USB 3.2 Gen2 Type-A Rear IO connectivity, ASUS AURA RGB Header, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.

AMD B550 Chipset

AM4 CPU Socket

M-ATX Form Factor

Tweak and Tune Your Way

WIDE RANGE OF PERFORMANCE AND TUNING OPTIONS

Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work – maximising your productivity.

Energy Efficiency

ALL-AROUND ENERGY EFFICIENCY

The Energy Processing Unit (EPU) automatically optimises your power consumption and maximizes energy savings with a simple Away mode — a smart setting that creates an extreme energy-saving scenario by shutting down any unused I/O controllers.


World Renowned UEFI BIOS

NOT JUST FOR VETERANS

The renowned ASUS UEFI BIOS provides everything you need to configure, tweak and tune your system. It offers intelligently simplified options for PC DIY beginners, as well as comprehensive features for seasoned veterans.

Advanced Mode

ADVANCED MODE

An intuitive Advanced mode offered via the UEFI lets you take complete control. A built-in search feature makes it easy to find options, and various Advanced functions let you intelligently make nuanced adjustments so you can dial in performance just the way you want.


Cooler by Design

COOL TO THE CORE

Prime B550 series features comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS.


Thermometer sensors

MULTIPLE TEMPERATURE SOURCES

Each header can be set to monitor and react to several thermal sensors, and via Fan Xpert 2+ you can even assign a sensor to monitor the temperature of supported ASUS graphics cards — for optimal cooling during GPU- or CPU-intensive workloads.

Keep your Components Cool for Longer

4K Recording

EXTENDED VRM HEATSINKS AND THERMAL PADS

A VRM heatsink with underneath thermal pad improves heat transfer from the MOSFETs and chokes for better cooling performance.

Lightning Fast Storage with Dual M.2

Dual m.2

FASTER BOOTING AND APP LOAD TIMES

PCIe 4.0 M.2 Slot supports up to 22110 and provides NVMe SSD RAID support for an incredible performance boost. Create a RAID configuration with up to 64Gbps PCIe 4.0 storage device to enjoy the fastest data-transfer speeds on the 3rd Generation AMD Ryzen platform.

ASUS SafeSlot Protection

safe slot core

PREMIUM ASUS TECHNOLOGY

SafeSlot Core is the ASUS-exclusive PCIe slot. Featuring a fortified design that's anchored to the motherboard by a special hook, SafeSlot Core provides 1.6x stronger retention and 1.3x greater shearing resistance than standard expansion slots.

Stronger Solder Points

STRENGTHENED SOLDER POINTS

Strengthened solder points around the PCIe and DIMM pins.

Need A Wireless Connection?

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INTEL WIFI 6 AX200

The Intel® WiFi 6 AX200 module is compatible with the 802.11ax standard and pushes theoretical peak bandwidth up to an incredible 2.4 Gbps. More importantly for power users, it's optimised for more efficient operation on crowded networks with a lot of competing traffic. Pair your motherboard with ASUS WiFi 6 routers to fully experience the networking potential of WiFi 6.

Connections at your Fingertips

Comprehensive IO Panel

Little Things Make a Big Difference

TRUSTWORTHY STABILITY AND COMPATIBILITY

Prime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look.

OVervoltage Protection

OVERVOLTAGE PROTECTION

An exclusive circuit design with built-in voltage regulators to protect your motherboard from damage caused by unexpected high-level voltages from unstable or inferior power supplies.

DRAM Overcurrent Protection

DRAM OVERCURRENT PROTECTION

On-board resettable fuses prevent overcurrent and short-circuit damage. This extends beyond I/O ports to DRAM to safeguard the lifespan of your system and connected devices.

Stainless-Steel Back I/O

STAINLESS-STEEL BACK I/O

Corrosion-resistant stainless-steel back I/O panels bonded with chromium oxide have a lifespan that's three times longer than ordinary panels.

Stainless-Steel Back I/O

LANGUARD

ASUS LANGuard is a hardware-level network protection feature that integrates advanced signal-coupling technology and premium anti-EMI surface-mounted capacitors to improve throughput and ensure a more reliable connection.

PRIME B550M-A (Wi-Fi) Tried and Tested

SUPERIOR RELIABILITY WITH 8000+ VALIDATION HOURS

ASUS motherboards offer superb endurance verified by subjecting every board to more than 8,000 hours of stringent tests. A barrage of burn-in, environmental, compatibility, software and safety tests confirm that our motherboards are exceptionally robust. It also shows that ASUS reliability surpasses industry standards, ensuring that every component is designed to function flawlessly in any environment.

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TEMPERATURE AND HUMIDITY TESTS

Ensures components withstand extreme conditions.

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THERMAL MEASUREMENT TESTS

Ensures that the system remains cool and stable under the heaviest loads.

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INSERTION TESTS

Every port and connector is put through repeated installation cycles.

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AGING TESTS

Up to 48-hour aging test ensures reliability.

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POWER-CONSUMPTION TESTS

Delivers world-class energy efficiency.

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TEMPERATURE AND DC MARGIN TESTS

Ensures that the motherboard is capable of coping with voltages fluctuations caused by varying temperatures.

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THERMAL-SHOCK TESTS

Ensures ability to survive temperature changes during transportation.

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NON-OPERATION SHOCK TESTS

Built to withstand jolts that may occur during shipping.

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BURN-IN TESTS

Every component is checked to ensure flawless operation.

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INSTALLATION TESTS

Connector placement is double-checked to ensure hassle-free installation.

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DROP TESTS

Drop tests from various heights ensure durability.

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SALT AND SPRAY TESTS

Tested for I/O reliability, prolonged lifespan and rust-resistance.

General

Product Type Motherboard - micro ATX
Chipset Type AMD B550
Processor Socket Socket AM4
Max Processors Qty 1
Compatible Processors Ryzen (supports 3rd Generation Ryzen)

Supported RAM

Max Size 128 GB
Technology DDR4
Bus Clock 2400 MHz, 2133 MHz, 2800 MHz, 3000 MHz, 2666 MHz, 2933 MHz, 3466 MHz (O.C.), 3600 MHz (O.C.), 3866 MHz (O.C.), 4000 MHz (O.C.), 4400 MHz (O.C.), 3200 MHz
Supported RAM Integrity Check ECC
Registered or Buffered Unbuffered

Audio

Type HD Audio (8-channel)
Audio Codec Realtek ALC887
Compliant Standards High Definition Audio

LAN

Network Controller Realtek RTL8111H
Network Interfaces Gigabit Ethernet

Expansion / Connectivity

Expansion Slots 1 x CPU ¦ 4 x DIMM 288-pin ¦ 1 x PCIe 4.0 x16 ¦ 2 x PCIe 3.0 x1
Storage Interfaces SATA-600 -connectors: 4 x 7pin Serial ATA - RAID 0 / RAID 1 / RAID 10 ¦ SATA-600 / PCIe 4.0 -connectors: 1 x M.2 ¦ SATA-600 / PCIe 3.0 -connectors: 1 x M.2
Interfaces 1 x VGA ¦ 1 x DVI-D ¦ 1 x LAN (Gigabit Ethernet) ¦ 4 x USB 3.2 Gen 1 ¦ 2 x USB 3.2 Gen 2 ¦ 1 x audio line-in - mini-jack ¦ 1 x audio line-out - mini-jack ¦ 1 x microphone - mini-jack ¦ 1 x PS/2 keyboard / mouse ¦ 1 x HDMI
Internal Interfaces 4 x USB 2.0 - header ¦ 2 x USB 3.2 Gen 1 - header ¦ 1 x SPDIF out - header ¦ 1 x audio - header ¦ 1 x serial - header ¦ 1 x speaker - header
Power Connectors 24-pin main power connector, 8-pin ATX12V connector

Features

BIOS Type AMI
BIOS Features UEFI BIOS, ASUS EZ Flash 3
Sleep / Wake Up Wake on LAN (WOL)
Hardware Features Jack retasking, ASUS Q-Design, ASUS TurboV EVO, Q-DIMM, ASUS EZ DIY, Q-Slot, CrashFree BIOS 3, audio jack detect technology, ASUS EPU (Energy Processing Unit), ASUS DIGI+ VRM, Preboot eXecution Environment (PXE), ASUS Stainless Steel Back I/O, ASUS Fan Xpert 2+, LANGuard, ASUS Overvoltage Protection, Lighting Control, ASUS 5X Protection III, ASUS SafeSlot Core, ASUS Aura Sync, Armoury Crate

Miscellaneous

Included Accessories 1 x M.2 screw, I/O back cover
Cables Included 2 x Serial ATA cable
Software Included Drivers & Utilities, ASUS AI Charger, ASUS CPU-Z, ASUS AI Suite III, ASUS EZ Update, DAEMON Tools, WinRAR, Norton AntiVirus (60 days trial)
Width 24.4 cm
Depth 24.4 cm