Asus Prime B550M-A/CSM Desktop Motherboard - AMD B550 Chipset - Socket AM4 - Micro ATX - 128 GB DDR4 SDRAM Maximum RAM - DIMM, UDIMM - 4 x Memory Slots - Gigabit Ethernet - HDMI - 4 x SATA Interfaces 3RD GEN RYZEN MICROATX COMMERCIAL
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
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AMD AM4 socket: Ready for 3rd Gen AMD Ryzen™ Processors
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Comprehensive cooling: VRM heatsink, PCH heatsink, and Fan Xpert 2+
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Ultrafast connectivity: Dual M.2, PCIe 4.0, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A
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Aura Sync RGB: Onboard addressable Gen 2 header for RGB LED strips, easily synced with Aura Sync-capable hardware
PRIME
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.
ASUS Corporate Stable Model
ASUS Corporate Stable Model (CSM) is a commercial program designed to provide stable and reliable motherboards. Offering up to 36-month product lifecycle support and 6-month end-of-life notice to allow sufficient lead times for your organization to get ready for product transitions. Each purchase of an ASUS CSM motherboard comes with ASUS Control Center Express - server-grade IT management software.
ASUS Control Center Express
ASUS Control Center Express is an integrated IT monitoring and management software designed to deploy faster, simplify IT operations and improve productivity with comprehensive control and user-friendly functions. ASUS Control Center Express is compatible with over 100 ASUS motherboards to provide a high-quality, TCO-optimized solution for your business needs.
Optimize IT endpoint management
Designed to assist IT staff in monitoring and controlling devices within their corporate networks, and facilitate inventory checking in multiple locations remotely
Automate IT maintenance
Allows IT staff to schedule automatic updates of the latest BIOS, software and utilities to specific or all devices at off-peak times, enhancing system stability and IT operational flexibility
Securely manage all of endpoints
Securely manage endpoint configuration, portable storage access and PC software applications by enabling them to create grouping rules on individual devices
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.
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.
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.
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 the 3rd Generation AMD Ryzen platform.
Audio
Network & Communication
Video
| Onboard Video |
CPU Dependent Video |
Physical Characteristics
| Form Factor |
Micro ATX |
| Width |
9.6" |
| Depth |
9.6" |
Memory
| Maximum Memory |
128 GB |
| 128 GB |
| Memory Technology |
DDR4 SDRAM |
| Number of Memory Slots |
4 |
| Memory Form Factor |
DIMM |
| UDIMM |
| Memory Speed Supported |
3000 MHz |
| 3200 MHz |
| 3333 MHz |
| 3466 MHz |
| 2800 MHz |
| 2667 MHz |
| 2133 MHz |
| 2400 MHz |
| 3200 MHz |
| 3000 MHz |
| 2800 MHz |
| 3600 MHz |
| 3733 MHz |
| 3866 MHz |
| 4000 MHz |
| 3333 MHz |
| 3466 MHz |
| 3600 MHz |
| 3733 MHz |
| 3866 MHz |
| 4000 MHz |
| 4133 MHz |
| 4266 MHz |
| 4400 MHz |
| 4466 MHz |
| 4600 MHz |
| 4800 MHz |
| 4133 MHz |
| 4266 MHz |
| 4400 MHz |
| 4466 MHz |
| 4600 MHz |
| 4800 MHz |
| 2133 MHz |
| 2400 MHz |
| 2667 MHz |
I/O Expansions
| Number of PCI Express x1 Slots |
2 |
| Number of Total Expansion Slots |
3 |
| Number of PCI Express x16 Slots |
1 |
| Total Number of PCI Express Slots |
3 |
Miscellaneous
| Country of Origin |
China |
| Environmentally Friendly |
Yes |
| Environmental Certification |
RoHS |
| Brand Compatibility |
AMD |
I/O Controller
| RAID Levels |
10 |
| 1 |
| 0 |
| Controller Type |
Serial ATA/600 |
| RAID Supported |
Yes |
Interfaces/Ports
| HDMI |
Yes |
| DVI |
Yes |
| VGA |
Yes |
| Number of Network (RJ-45) Ports |
1 |
| Total Number of USB Ports |
6 |
| Number of USB 3.2 Ports |
6 |
Onboard Interfaces
| Number of SATA Interfaces |
4 |
| Total Number of Onboard USB Ports |
6 |
| Number of Onboard USB 2.0 Ports |
4 |
| Onboard S/PDIF Header |
Yes |
| Number of M.2 Interfaces |
2 |
| Number of Onboard USB 3.2 Ports |
2 |
General Information
| Product Type |
Desktop Motherboard |
| Manufacturer Part Number |
PRIME B550M-A/CSM |
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| Manufacturer |
ASUS Computer International |
| Product Model |
B550M-A/CSM |
| Product Name |
Prime B550M-A/CSM Desktop Motherboard |
| Product Line |
Prime |
| Brand Name |
Asus |
Processor & Chipset
| Processor Supported |
Ryzen 9 PRO |
| Ryzen 3 |
| Ryzen 5 |
| Ryzen 7 |
| Ryzen 5 Pro |
| Ryzen 9 |
| Ryzen 7 PRO |
| Total Processor Supported |
1 |
| Processor Socket |
Socket AM4 |
| Chipset Manufacturer |
AMD |
| Chipset Model |
B550 |
