ASUS AM4 MicroATX PRIME B550M-A WIFI Motherboard

PN: PRIME B550M-A (WI-FI)

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Chipset:AMD B550
CPU Socket:AMD AM4
USB:USB 2.0USB 3.2 Type-A (Gen2)USB 3.2 Type-A (Gen1)USB 3.2 Type-A
PCIe Size:PCIe x16PCIe x1
Storage Interface:SATAM.2 PCIe
RAM Type:DDR4
Audio:7.1 Channel
LAN Speed:2.5Gb
Motherboard Form Factor:Micro-ATX

asus_prime_b550ma_wifi_am4_microatx_motherboard_ac35550

  • Build in AMD AM4 Socket 3rd Gen AMD Ryzen™ Processors *
    * Refer to www.asus.com for CPU support list

  • Chipset

    AMD B550

  • Memory

    3rd Gen AMD Ryzen™ Processors
    4 x DIMM, Max. 128GB, DDR4 4600(O.C)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory *
    Next Generation AMD Ryzen PRO Processors
    4 x DIMM, Max. 128GB, DDR4 4800(O.C.)/4600(O.C)/4466(O.C.)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz 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).

  • Graphic

    1 x D-Sub
    1 x DVI-D
    1 x HDMI 2.1(4K@60HZ)

  • Expansion Slots

    3rd Gen AMD Ryzen™ Processors
    1 x PCIe 4.0 x16 (x16 mode)
    AMD B550 Chipset
    2 x PCIe 3.0 x1

  • Storage

    Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
    3rd Gen AMD Ryzen™ Processors :
    1 x M.2 Socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 4.0 x4 and SATA modes) storage devices support
    AMD B550 Chipset :
    1 x M.2 Socket 3, with M Key, Type 2242/2260/2280 (PCIE 3.0 x4 and SATA modes) storage devices support
    4 x SATA 6Gb/s port(s),
    Support Raid 0, 1, 10

  • LAN

    Realtek RTL8111H 1Gb Ethernet

  • Wireless Data Network

    Intel® Wi-Fi 6 AX200
    2x2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax) support 1024QAM/OFDMA/MU-MIMO
    Supports up to 2.4Gbps max data rate
    Supports dual band frequency 2.4/5 GHz
    Supports channel bandwidth: HT20/HT40/HT80/HT160
    Supports PCIe interface

  • Bluetooth

    Bluetooth v5.1*
    *BT 5.1 function will be ready in Windows 10 build 19041 or later.

  • Audio

    Realtek ALC887 7.1 Surround Sound High Definition Audio CODEC
    - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback
    Audio Feature :
    - LED-illuminated design
    - Audio Shielding
    - Dedicated audio PCB layers
    - Premium Japanese audio capacitors

  • USB Ports

    Rear USB Port ( Total 6 )
    2 x USB 3.2 Gen 2 port(s)(2 x Type-A)
    4 x USB 3.2 Gen 1 port(s)(4 x Type-A)
    Front USB Port ( Total 6 )
    2 x USB 3.2 Gen 1 port(s)(2 x Type-A)
    4 x USB 2.0 port(s)(4 x Type-A)

  • 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
    ASUS CPU-Z
    AI Charger
    DAEMON Tools
    Norton Anti-virus software (Free Trial for 60 days)
    WinRAR
    UEFI BIOS
    ASUS EZ DIY
    - ASUS CrashFree BIOS 3
    - ASUS EZ Flash 3
    - ASUS UEFI BIOS EZ Mode

  • ASUS Special Features

    ASUS 5X PROTECTION III
    - ASUS DIGI+ VRM
    - ASUS LANGuard
    - ASUS Overvoltage Protection
    - ASUS SafeSlot Core
    - ASUS Stainless-Steel Back I/O
    ASUS Q-Design
    - ASUS Q-DIMM
    - ASUS Q-Slot
    ASUS Thermal Solution
    - Aluminum heatsink design
    AURA Sync
    - Standard RGB headers
    - Addressable Gen 2 RGB header
    ASUS Lighting Control

  • Back I/O Ports

    1 x PS/2 keyboard/mouse combo port(s)
    1 x DVI-D
    1 x D-Sub
    1 x HDMI
    1 x LAN (RJ45) port(s)
    2 x USB 3.2 Gen 2 (teal blue) (2 x Type-A)
    4 x USB 3.2 Gen 1 (blue) Type-A
    3 x Audio jack(s)
    1 x ASUS Wi-Fi Module

  • Internal I/O Ports

    1 x CPU Fan connector(s)
    1 x CPU OPT Fan connector(s)
    2 x Chassis Fan connector(s)
    2 x Aura RGB Strip Headers
    1 x Addressable Gen 2 header(s)
    1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s)
    2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
    1 x M.2 Socket 3 with M key, type 2242/2260/2280/22110 storage devices support(SATA & PCIe 4.0 x4 mode)
    1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
    1 x SPI TPM header
    4 x SATA 6Gb/s connector(s)
    1 x S/PDIF out header(s)
    1 x 24-pin EATX Power connector(s)
    1 x 8-pin EATX 12V Power connectors
    1 x Front panel audio connector(s) (AAFP)
    1 x Clear CMOS jumper(s)
    1 x System panel connector
    1 x COM port header
    1 x Speaker connector

  • Accessories

    I/O Shield
    2 x SATA 6Gb/s cable(s)
    1 x Supporting DVD
    User manual
    1 x Wi-Fi moving antenna
    1 x M.2 SSD screw package(s)

  • BIOS

    256 Mb Flash ROM, UEFI AMI BIOS

  • Manageability

    WOL by PXE

  • Operating System

    Windows® 10 64-bit

  • Form Factor

    mATX Form Factor
    9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )

asus am4 microatx prime b550m-a wifi motherboard

  • Products certified by the Federal Communications Commission and Industry Canada will be distributed in the United States and Canada. Please visit the ASUS USA and ASUS Canada websites for information about locally available products.
  • All specifications are subject to change without notice. Please check with your supplier for exact offers. Products may not be available in all markets.
  • Specifications and features vary by model, and all images are illustrative. Please refer to specification pages for full details.
  • PCB color and bundled software versions are subject to change without notice.
  • Brand and product names mentioned are trademarks of their respective companies.
  • Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.
  • *Precise specifications and features vary by model . Please refer to the specification page
  • The product (electrical , electronic equipment, Mercury-containing button cell battery) should not be placed in municipal waste. Check local regulations for disposal of electronic products.
  • The use of trademark symbol (TM, ®) appears on this website means that the word text, trademarks, logos or slogans, is being used as trademark under common laws protection and/or registered as Trademark in U.S. and/or other country/region.

Warranty Information


3 Year

Manufacturers Warranty

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Product - ASUS AM4 MicroATX PRIME B550M-A WIFI Motherboard