ASUS Prime B550M-A AM4 PCIe 4.0 DDR4 (4600 O.C.) 2X M.2 USB 3.2 Gen2 mATX Motherboard with Aura Sync RGB Support


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  • 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-C & 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

11,999.00 16,999.00

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ASUS Prime B550M-A

The ASUS Prime B550M-A/CSM commercial motherboard has enhanced enterprise-level features, including comprehensive system protection and improved management suite with ASUS Control Center Express, ASUS Corporate Stable Model complimentary advance replacement, and a guaranteed long product life cycle.

ASUS, B550, MOtherboard, AMD

PCIe 4.0-Ready

Prime B550M-A/CSM has two M.2 slots, including the latest PCIe 4.0, to provide maximum storage flexibility and the fastest data speeds available via the 3rd Gen AMD Ryzen platform. Both M.2 slots support up to the type 22110 socket and NVM Express RAID for a performance boost.

ASUS, B550, MOtherboard, AMD

ASUS Corporate Stable Model

The B550M-A/CSM is part of the ASUS Corporate Stable Model (CSM) program, designed to provide a reliable supply of motherboards to businesses everywhere.

ASUS, B550, MOtherboard, AMD

ASUS Control Center Express(ACCE)

An integrated, real-time IT monitoring and management utility designed to speed up deployment, simplify IT operations, and improve productivity with comprehensive control and user-friendly design.


Enhanced Cooling

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

Fastest Connectivity

1Gb LAN, USB 3.2 Gen 2 Type-C & Type-A ports, a front panel USB 3.2 Gen 1 connector, plus HDMI 2.1, D-Sub, and DVI display outputs


Primed Protection

  1. SafeSlot Core- Fortified PCIe slot prevents damage
  2. Overvoltage Protection- World-class circuit-protecting power design
  3. DRAM Overcurrent Protection- Short-circuit damage prevention
  4. Stainless-Steel Back I/O- 3X corrosion-resistance for more durability
  5. LANGuard – Pumped-up throughput 2.5X surge tolerance
SKU: ASUS Prime B550M-A Category:


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Brand info


ASUS is a Taiwan-based, multinational computer hardware and consumer electronics company that was established in 1989. Dedicated to creating products for today’s and tomorrow’s smart life, ASUS is the world’s No. 1 motherboard and gaming brand as well as a top-three consumer notebook vendor. ASUS became widely known in North America when it revolutionized the PC industry in 2007 with its Eee PC™. Today, the company is pioneering new mobile trends with the ASUS ZenFone™ series, and it is rapidly developing virtual and augmented reality products as well as IOT devices and robotics technologies. Most recently, ASUS introduced Zenbo, a smart home robot designed to provide assistance, entertainment, and companionship to families. In 2015 and 2016, Fortune magazine recognized ASUS as one of the World’s Most Admired Companies, and for the past four years Interbrand has ranked ASUS Taiwan’s most valuable international brand. The company has more than 17,000 employees, including a world-class R&D team. Driven by innovation and committed to quality, ASUS won 4,385 awards and earned approximately US$13.3 billion in revenue in 2016.