ASUS Prime B550M-A Wi-Fi II Micro-ATX AM4 Motherboard - PRIMEB550M-AWIFIII

Prime

ASUS Prime series is expertly engineered to unleash the full potential of 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series AMD Ryzen platform. Boasting a robust power design; 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. This platform delivers the power and connectivity that advanced AI PC applications demand.

Tune It Your Way

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 - maximizing your productivity.

UEFI BIOS: 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.

UEFI BIOS - Advance Mode - Advanced Tuning for Serious Tweakers: 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.

UEFI BIOS - Advanced Tuning for Serious Tweakers - Search Function: Quickly and easily find the option or setting you need.

UEFI BIOS - Advanced Tuning for Serious Tweakers - ASUS User Profile: Port configuration settings between different BIOS versions or share them with friends.

UEFI BIOS - EZ Mode - Quick and Simple Setup: EZ mode displays vital settings and stats and also offers guided wizards; drag-and-drop functionality; and one-click application of important settings - all to help you get your rig up and running in no time.

UEFI BIOS - EZ Mode - Intuitive Graphical Fan Control: Fine-tune individual fan settings simply by dragging a curve with the mouse.

UEFI BIOS - EZ Mode - EZ XMP: Improve DRAM performance with one click.

UEFI BIOS - EZ Mode - Aura On/Off mode (Stealth): Easily enable or disable Aura RGB lighting or every onboard LED; for a subdued aesthetic touch.

Cool to the Core

Prime B550 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.

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

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

Cooler by Design - Multiple Temperature Sources: Each header can dynamically reference three thermal sensors. Fan Xpert 2+ allows you to map the temperature of supported ASUS graphics cards to optimize cooling for GPU- and CPU-intensive tasks.

Cooler by Design - Smart Protection: A dedicated integrated circuit protects each fan header from overheating and overcurrent.

Cooler by Design - 4-Pin PWM/DC Fan: Each onboard chassis fan header supports PWM and DC mode.

Build on a Solid Foundation

Prime B550 motherboard provides all the fundamentals to boost daily productivity; so your system will be ready for action with stable power; intuitive cooling and flexible transfer options.

Storage - PCIe 4.0 M.2(up to 64 Gbps) - Achieve speed with onboard M.2: PCIe 4.0 M.2 Slot supports up to 22110 and provide NVMe SSD RAID support for an incredible performance boost. Create a RAID configuration with up to PCIe 4.0 storage device to enjoy the fastest data-transfer speeds on AMD Ryzen 5000 Series/ 3000 Series Processors.

Connectivity - Wi-Fi 6: Wi-Fi 6 module is compatible with the 802.11ax standard and pushes theoretical peak bandwidth up to an incredible 1.2 Gbps. Perhaps more importantly for power users; it's optimized 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.

Connectivity - USB 3.2 Gen 2 Type-A: Numerous USB ports support high-end rigs loaded with peripherals; including two rear-panel USB Type-A connectors with fast USB 3.2 Gen 2 connectivity for compatible cases.

Little Things Make a Big Difference

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.

Outstanding Audio - Combined onboard features deliver elevated audio: Intelligent design and premium hardware create audio quality unlike anything you've ever experienced.

Outstanding Audio - Combined onboard features deliver elevated audio - Audio Shielding: Separates analog/digital signal domains; significantly reducing multi-lateral interference.

Outstanding Audio - Combined onboard features deliver elevated audio - Separate Layer for Left and Right Tracks: Ensures minimal crosstalk between audio paths.

Outstanding Audio - Combined onboard features deliver elevated audio - Premium Audio Capacitors: Premium parts provide an immersive sound signature; with exceptional fidelity.

Personalization - Aura Sync - Outshine the Competition: A well-tuned enthusiast system deserves a matching aesthetic. ASUS Aura offers full RGB lighting control with a variety of functional presets for RGB LED strips connected to the onboard RGB headers. And it can all be synced with an ever-growing portfolio of Aura-capable hardware.

Personalization - Addressable Gen 2 Header: The addressable Gen 2 header is now capable of detecting the number of LEDs on second-gen addressable RGB devices; allowing the software to automatically tailor lighting effects to specific devices. The new header also offers backward-compatibility with existing Aura RGB gear.

Personalization - Armoury Crate: Armoury Crate is a new software utility designed to give you centralized control of supported products. From a single intuitive interface; Armoury Crate allows you to easily customize RGB lighting and effects for every compatible device in your arsenal. The software also provides control of settings for ASUS products; including keyboard and mouse preferences. Armoury Crate even features dedicated product registration and highlight to help you stay in touch with the ASUS community.

DIY Friendly - SafeSlot Core - Fortified PCIe slot prevents damage: 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.

ASUS Prime motherboards have strengthened solder points around both the PCIe and DIMM pins.

DIY Friendly - SafeSlot Core - Overvoltage Protection - World-class circuit-protecting power design: 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.

DIY Friendly - SafeSlot Core - DRAM Overcurrent Protection - Short-circuit damage prevention: Onboard 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.

DIY Friendly - SafeSlot Core - Stainless-Steel Back I/O - 3X corrosion-resistance for greater durability: Corrosion-resistant stainless-steel back I/O panels bonded with chromium oxide have a lifespan that's three times longer than ordinary panels.

DIY Friendly - SafeSlot Core - LANGuard - Pumped-up throughput 2.5X higher surge tolerance: 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.

1000+ Compatible devices and components: The Prime B550 series provides superior compatibility with thousands of components and our Qualified Vendor List (QVL) identifies memory compatibility; giving you more choices for worry-free PC-building experiences.

8000+ Validation hours: Every ASUS motherboard is subjected to more than 8;000 hours of stringent tests; including burn-in; environmental; compatibility; software and safety tests to confirm their durability. ASUS reliability surpasses industry standards; ensuring that every component is designed to function flawlessly in any environment.

Temperature and humidity tests: Ensures components withstand extreme conditions.

Thermal measurement tests: Ensures that the system remains cool and stable under the heaviest loads.

Insertion tests: Every port and connector is put through repeated installation cycles.

Aging tests: Up to 48-hour aging test ensures reliability.

Power-consumption tests: Checked for world-class energy efficiency.

Temperature and DC margin tests: Ensures that the motherboard is capable of coping with voltages fluctuations caused by varying temperatures.

Thermal-shock tests: Ensures ability to survive temperature changes during transportation.

Non-operation shock tests: Built to withstand jolts that may occur during shipping.

Burn-in tests: Every component is checked to ensure flawless operation.

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

Drop tests: Drop tests from various heights ensure durability.

Salt and spray tests: Tested for I/O reliability; prolonged lifespan and rust-resistance.

Product Features:

• Ready for Advanced AI PC - Designed for the future of AI computing; with the power and connectivity needed for demanding AI applications
• 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

Specifications:

• CPU:
• AMD Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
• Refer to www.asus.com for CPU support list.
• Storage:
• Supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
• AMD Ryzen 5000 Series/ 3000 Series Desktop Processors
• M.2_1 slot (Key M); type 2242/2260/2280/22110 (supports PCIe 4.0 x4 & SATA modes)
• AMD Ryzen 4000 G-Series Desktop Processors
• M.2_1 slot (Key M); type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes)
• AMD B550 Chipset
• M.2_2 slot (Key M); type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes)
• 4 x SATA 6Gb/s ports
• Support RAID 0; 1; 10
• Ethernet:
• 1 x Realtek 1Gb Ethernet
• ASUS LANGuard
• USB:
• Rear USB: Total 6 ports
• Front USB: Total 6 ports
• 2 x USB 3.2 Gen 2 ports (2 x Type-A)
• 4 x USB 3.2 Gen 1 ports (4 x Type-A)
• 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports
• 2 x USB 2.0 headers support additional 4 USB 2.0 ports
• Operating System: Windows 11; Windows 10 64-bit
• Form Factor:
• microATX
• 24.4cm x 24.4cm
• News & Updates: Socket AM4
• Memory:
• 4 x DIMM; Max. 128GB; DDR4
• 4866(OC)/4800(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133; Un-buffered Memory
• Dual Channel Memory Architecture
• ECC memory (ECC mode) support varies by CPU
• Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists); and memory frequency support depends on the CPU types
• Graphics:
• 1 x D-Sub port
• 1 x DVI-D port
• 1 x HDMI port
• Graphics specifications may vary between CPU types
• Supports 4K@60Hz as specified in HDMI 2.1
• Expansion Slots:
• AMD Ryzen 5000 Series/ 3000 Series Desktop Processors
• 1 x PCIe 4.0 x16 slot (supports x16 mode)
• AMD Ryzen 5000 G-Series/ 4000 G-Series Desktop Processors
• 1 x PCIe 3.0 x16 slot (supports x16 mode)
• AMD B550 Chipset
• 2 x PCIe 3.0 x1 slots
• Wireless & Bluetooth:
• Wi-Fi 6
• 2x2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
• Supports 2.4/5GHz frequency band
• Bluetooth v5.2
• Audio:
• Realtek 7.1 Surround Sound High Definition Audio CODEC
• Supports: Jack-detection; Multi-streaming; Front Panel Jack-retasking
• Supports up to 24-Bit/192 kHz playback
• Audio Features
• Audio Shielding
• LED-illuminated audio trace path design
• Premium audio capacitors
• Dedicated audio PCB layers
• A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output
• Back Panel I/O Ports:
• 2 x USB 3.2 Gen 2 ports (2 x Type-A)
• 4 x USB 3.2 Gen 1 ports (4 x Type-A)
• 1 x D-Sub port
• 1 x DVI-D port
• 1 x HDMI port
• 1 x Wi-Fi Module
• 1 x Realtek 1Gb Ethernet port
• 3 x Audio jacks
• 1 x PS/2 Keyboard/Mouse combo port
• Internal I/O Connectors:
• Fan and Cooling related
• 1 x 4-pin CPU Fan header
• 1 x 4-pin CPU OPT Fan header
• 2 x 4-pin Chassis Fan headers
• Power related
• 1 x 24-pin Main Power connector
• 1 x 8-pin +12V Power connector
• Storage related
• 2 x M.2 slots (Key M)
• 4 x SATA 6Gb/s ports
• USB
• 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports
• 2 x USB 2.0 headers support additional 4 USB 2.0 ports
• Miscellaneous
• 1 x Addressable Gen 2 header
• 2 x AURA RGB headers
• 1 x Clear CMOS header
• 1 x COM Port header
• 1 x Front Panel Audio header (AAFP)
• 1 x S/PDIF Out header
• 1 x Speaker header
• 1 x SPI TPM header (14-1pin)
• 1 x 10-1 pin System Panel header
• Special Features:
• ASUS 5X PROTECTION III
• DIGI+ VRM
• LANGuard
• Overvoltage Protection
• SafeSlot Core
• Stainless-Steel Back I/O
• ASUS Q-Design
• Q-DIMM
• Q-Slot
• ASUS Thermal Solution
• VRM heatsink design
• AURA Sync
• AURA RGB headers
• Addressable Gen 2 headers
• Software Features:
• ASUS Exclusive Software
• Armoury Crate
• AURA Creator
• AURA Sync
• AI Suite 3
• Performance and Power Saving Utility
• TurboV EVO
• EPU
• DIGI+ VRM
• Fan Xpert 2+
• EZ update
• Lighting Control
• ASUS CPU-Z
• AI Charger
• DAEMON Tools
• MyASUS
• Norton Anti-virus software (Free Trial version)
• WinRAR
• UEFI BIOS
• ASUS EZ DIY
• ASUS CrashFree BIOS 3
• ASUS EZ Flash 3
• ASUS UEFI BIOS EZ Mode
• BIOS: 256 Mb Flash ROM; UEFI AMI BIOS
• Manageability: WOL by PME; PXE
• News & Updates: Socket AM4