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ASUS Prime B550M AM4 Motherboard


  • BIOS update might require for AMD Zen 3 Ryzen 5000 series CPU
  • AMD AM4 Socket and PCIe 4.0: The perfect pairing for 3rd Gen AMD Ryzen CPUs
  • Fast Connectivity: 1Gb LAN, USB 3.2 Gen 2 Type-A ports, a front panel USB 3.2 Gen 1 connector, plus HDMI 2.1, D-Sub, and DVI display outputs
  • First PCIe 4.0 CSM motherboard: ASUS Corporate Stable Model with up to 36-month supply, EOL notice, and ECN control
  • ASUS Control Center Express (ACCE) to make IT endpoint management simpler
  • 5X Protection III: all-round protection with LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and stainless-steel back I/O


ASUS Prime B550M AM4 Motherboard

AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, 1 Gb Ethernet, HDMI/D-Sub/DVI, SATA 6 Gbps, USB 3.2 Gen 2 Type-A, and Aura Sync RGB headers support

  • AMD AM4 socket: Ready for 3rd Gen AMD Ryzen™ Processors
  • Comprehensive cooling: VRM heatsink, PCH heatsink, and Fan Xpert 2+
  • Ultrafast connectivity: Dual M.2, PCIe 4.0, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A
  • Aura Sync RGB: Onboard addressable Gen 2 header for RGB LED strips, easily synced with Aura Sync-capable hardware

Prime Series

ASUS Prime series is expertly engineered to unleash the full potential of 3rd Generation 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.

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  1. PS/2
  2. 2 x USB 3.2 Gen 1
  3. DVI-D
  4. D-Sub
  5. HDMI
  6. 2 x USB 3.2 Gen 2
  7. Realtek LAN
  8. 2 x USB 3.2 Gen 1
  1. 3 x Audio jacks
  2. PCIe 4.0 x16
    ASUS SafeSlot Core
  3. Audio Features
    • LED-illuminated design
    • Audio Shielding
    • Premium Japanese Audio Capacitors
    • Dedicated Audio PCB Layers
  4. Addressable Gen 2 header
  5. DIGI+ VRM & EPU
  1. DDR4 support
  2. AMD AM4 Socket
  3. 2 x Front USB 3.2 Gen 1
  4. 64Gb/s M.2 Support
    PCIe 4.0 x4 & SATA mode
  5. AMD B550 Chipset
  6. 32Gb/s M.2 Support
    PCIe 3.0 x4 & SATA mode
  7. 4 x SATA 6Gb/s
  8. 4 x Front USB 2.0
  9. 2 x AURA RGB headers

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.

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Cooler by Design

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


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