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ASUS - PRIME B550M-A WIFI II (Socket AM4) AMD B550 Micro ATX DDR4 Wi-Fi 6 Motherboard - Black

Model: PRIME B550M-A WIFI II
SKU: 11013269
$109.51
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Specifications
  • Chipset
    AMD B550
    Form Factor
    microATX
    Processor Socket
    Socket AM4 (PGA 1331)
    Number of PCI-E Slots
    3
    Wireless Networking Standard
    Wi-Fi 6
    Number Of Memory Slots
    4
  • Key Specs
    • Chipset: AMD B550
    • Form Factor: microATX (The size, arrangement, and physical configuration of the product.)
    • Processor Socket: Socket AM4 (PGA 1331) (Type of pin configuration that connects a CPU to a computer’s motherboard.)
    • Number of PCI-E Slots: 3 (How many peripheral component interconnect express slots are available.)
    • Wireless Networking Standard: Wi-Fi 6 (The wireless networking standard used by the device. Each iteration of the standard developed by the Wi-Fi Alliance corresponds to an existing IEEE 802.11 protocol; for example, standard 802.11ac (or AC) is termed Wi-Fi 5. Refers specifically to the standard the device is designed to use, but ultimately determines product interoperability and backward compatibility including previous versions.)
    • Number Of Memory Slots: 4
    • Maximum Memory Supported: 128 gigabytes
    • Memory Type Supported: DDR4
  • General
    • Brand: ASUS
    • Model Number: PRIME B550M-A WIFI II
    • Product Name: PRIME B550M-A WIFI II (Socket AM4) AMD B550 Micro ATX DDR4 Wi-Fi 6 Motherboard
    • Color: Black
    • Year of Release: 2026
  • Compatibility
    • Chipset: AMD B550
    • Chipset Compatibility: AMD
    • Form Factor: microATX (The size, arrangement, and physical configuration of the product.)
    • Processor Socket: Socket AM4 (PGA 1331) (Type of pin configuration that connects a CPU to a computer’s motherboard.)
    • Processor Compatibility: AMD Ryzen 9 5000 Series, AMD Ryzen 7 5000 Series, AMD Ryzen 5 5000 Series, AMD Ryzen 3 5000 Series, AMD Ryzen 9 4000 Series, AMD Ryzen 7 4000 Series, AMD Ryzen 5 4000 Series, AMD Ryzen 3 4000 Series, AMD Ryzen 9 3000 Series, AMD Ryzen 7 3000 Series, AMD Ryzen 5 3000 Series, AMD Ryzen 3 3000 Series
    • Operating System Compatibility: Windows 11 Pro, Windows 11 Home, Windows 10 Pro, Windows 10 Home
  • Slot
    • Number of M.2 Slots: 2 (This interface is most commonly used for high-speed solid state drives (SSDs), and is often used in laptops due to its small size.)
    • Number of PCI-E Slots: 3 (How many peripheral component interconnect express slots are available.)
    • Number Of PCI-E x16 Slots: 1
    • Number Of PCI-E x1 Slots: 2
    • Number Of Memory Slots: 4
  • Connectivity
    • Power Connector: 1x24 Pin (The configuration of the connector as it connects the motherboard to a power supply unit.)
    • SATA Connector: 4 (The configuration of the connector as it connects a computer power supply unit to a SATA-based drive.)
    • Wireless Connectivity: Wi-Fi, Bluetooth (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
    • Wireless Networking Standard: Wi-Fi 6 (The wireless networking standard used by the device. Each iteration of the standard developed by the Wi-Fi Alliance corresponds to an existing IEEE 802.11 protocol; for example, standard 802.11ac (or AC) is termed Wi-Fi 5. Refers specifically to the standard the device is designed to use, but ultimately determines product interoperability and backward compatibility including previous versions.)
    • Wireless Standard: AX (The wireless networking protocol used by the device. Each iteration of the protocol is based on the 802.11 standard developed by the Institute of Electrical and Electronics Engineers (IEEE) Standards Association. Denoted by letters following 802.11 (802.11a, 802.11ac, etc.), each version, published in alphabetical order, encompasses all previous versions.)
  • Ports
    • USB Ports: 2 x USB-A 3.2, 4 x USB-A 3.2 (The number and type of USB ports the product has.)
    • Number of Audio Channels: 7.1 (The number of discrete channels of sound output. This can be a single number or multiple numbers separated by decimal(s). The first number is the primary, horizontally directed audio channels. The number after the first decimal, if applicable, is the number of subwoofer outputs or channels. The number after the second decimal, if applicable, is the number of height or atmospheric channels designed to immerse the listener by producing overhead sound effects.)
  • Dimensions
    • Product Length: 244 millimeters (The out of box length of the item. Length is measured as the longest dimension of the item.)
    • Product Width: 244 millimeters (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Weight: 21.92 ounces (The out of box weight of the item.)
  • Memory
    • Maximum Memory Supported: 128 gigabytes
    • Memory Type Supported: DDR4
    • Memory Format Supported: UDIMM (Memory module size that will fit with the device.)
    • Memory Speeds Supported: Supports 2133–3200 native, 3333–4866 OC; unbuffered memory (The RAM's bandwidth rating supported by the device. The number refers to transfer speed. For example, 12800 would indicate that the memory has a theoretical bandwidth of 12,800 megabytes per second (MBs). The higher the number, the faster the speed.)
    • Memory Slot Type: 288-pin DIMM
  • Features
    • RAID Support: RAID 0, RAID 1, RAID 10 (RAID 1+0) (A Redundant Array of Independent Disks (RAID) includes a collection of separate disks that your computer recognizes as one disk unit. Each configuration offers a different level of mirroring, striping and read/write speeds.)
  • Warranty
    • Warranty - Parts: 3 years
    • Warranty - Labor: 3 years
  • Other
    • UPC: 195553309752

Powered by 3rd Gen AMD Ryzen processors, the ASUS Prime B550M-A WiFi II delivers next-generation speeds with PCIe 4.0, Wi-Fi 6 and 1Gb LAN. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, the ASUS Prime B550M-A Wi-Fi 6 provides mainstream PC users and DIY PC builders with a perfect all-around foundation via intuitive software and firmware features.

  • AMD AM4 Socket and PCIe 4.0: The perfect pairing for 3rd Gen AMD Ryzen CPUs
  • Ultrafast Connectivity: 1x PCIe 4.0 x16 SafeSlot, Wi-Fi 6 (802.11ax), 1Gb LAN, dual M.2 slots (NVMe SSD)—one with PCIe 4.0 x4 connectivity, USB 3.2 Gen 2 Type-A , HDMI 2.1 (4K@60HZ), D-Sub & DVI
  • Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers and Fan Xpert 2 utility
  • 5X Protection III: All-round protection with LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and stainless-steel back I/O
  • Boosted Memory Performance: ASUS OptiMem proprietary trace layout allows memory kits to operate at higher frequencies with lower voltages to maximize system performance
  • Enhanced Power Solution: 8+1 DrMOS power stages with high-quality alloy chokes and durable capacitors to provide reliable power for the last AMD high-count-core CPUs
  • Aura Sync RGB: Synchronizable LED effects across a wide range of compatible PC gear, plus RGB LED and Addressable Gen 2 RGB headers for greater customization
Whats Included
  • PRIME B550M-A WIFI II Motherboard
  • 2x SATA 6Gb/s Cables
  • 1x ASUS Wi-Fi Moving Antenna
  • 1x M.2 SSD Screw Package
  • 1x I/O Shield
  • 1x Support DVD
  • Quick Start Guide
  • Warranty Card
Product Manuals
Disclaimers
  • * Non-ECC, un-buffered DDR4 memory supports On-Die ECC function
  • ** Max Manual Overclocking: Achievable with advanced BIOS configuration and potentially specialized hardware. Passed AIDA64 memory benchmark at this frequency, verifying read/write bandwidth. Results may vary according to system components
  • *** XMP/EXPO/AEMP Profiles: Rated memory module speeds require setting the BIOS perormance profile. Results may vary according to system components and can be impacted when four DIMM slots are used. For XMP/EXPO/AEMP profile settings, please visit https://rog.asus.com/support/faq/1042256/
  • **** Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. Adjustments will be made based on the specifications of mass-produced memory products available on the market
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