Asus Prime B550M-A (WI-FI) Desktop Motherboard - AMD Chipset - Socket AM4 - Micro ATX

General Information

Manufacturer: ASUS Computer International
Manufacturer Part Number: 90MB14D0-M0AAY0
Brand Name: Asus
Product Line: Prime
Product Model: B550M-A (WI-FI)
Product Name: Prime B550M-A (WI-FI) Desktop Motherboard
Marketing Information:

AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, Intel WiFi 6, 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, Intel WiFi 6, 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

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.

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.

Little Things Make a Big Difference

Prime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look.

Outstanding Audio

Combined onboard features deliver elevated audio

Intelligent design and premium hardware create audio quality unlike anything you've ever experienced.

Audio Shielding

Separates analog/digital signal domains, significantly reducing multi-lateral interference.

Separate Layer for Left and Right Tracks

Ensures minimal crosstalk between audio paths.

Premium Japanese Capacitors

Premium parts provide an immersive sound signature, with exceptional fidelity.

Product Type: Desktop Motherboard

Processor & Chipset

Chipset Manufacturer: AMD
Total Processor Supported: 1
Processor Socket: Socket AM4
Processor Supported: Ryzen 3
Processor Supported: Ryzen 5
Processor Supported: Ryzen 5 Pro
Processor Supported: Ryzen 7
Processor Supported: Ryzen 7 PRO
Processor Supported: Ryzen 9
Processor Supported: Ryzen 9 PRO

Memory

Number of Memory Slots: 4
Memory Form Factor: DIMM
Memory Form Factor: UDIMM
Maximum Memory Supported: 128 GB
Memory Technology: DDR4 SDRAM
Memory Speed Supported: 2133 MHz
Memory Speed Supported: 2400 MHz
Memory Speed Supported: 2667 MHz
Memory Speed Supported: 2800 MHz
Memory Speed Supported: 3000 MHz
Memory Speed Supported: 3200 MHz
Memory Speed Supported: 3333 MHz (O.C.)
Memory Speed Supported: 3466 MHz (O.C.)
Memory Speed Supported: 3600 MHz (O.C.)
Memory Speed Supported: 3733 MHz (O.C.)
Memory Speed Supported: 3866 MHz (O.C.)
Memory Speed Supported: 4000 MHz (O.C.)
Memory Speed Supported: 4133 MHz (O.C.)
Memory Speed Supported: 4266 MHz (O.C.)
Memory Speed Supported: 4400 MHz (O.C.)
Memory Speed Supported: 4466 MHz (O.C.)
Memory Speed Supported: 4600 MHz (O.C.)
Memory Speed Supported: 4800 MHz (O.C.)

I/O Controller

Controller Type: Serial ATA/600
RAID Supported: Yes
RAID Levels: 0
RAID Levels: 1
RAID Levels: 10

Video

Onboard Video: CPU Dependent Video

Audio

Audio Channels: 7.1

Network & Communication

Bluetooth: Yes
Gigabit Ethernet: Yes
Wireless LAN: Yes
Wireless LAN Standard: IEEE 802.11 a/b/g/n/ac/ax

I/O Expansions

Number of Total Expansion Slots: 3
Total Number of PCI Express Slots: 3
Number of PCI Express x1 Slots: 2
Number of PCI Express x16 Slots: 1

Interfaces/Ports

Total Number of USB Ports: 6
Number of USB 3.2 Ports: 6
VGA: Yes
HDMI: Yes
DVI: Yes
Number of Network (RJ-45) Ports: 1

Onboard Interfaces

Number of SATA Interfaces: 4
Number of M.2 Interfaces: 2
Total Number of Onboard USB Ports: 6
Number of Onboard USB 2.0 Ports: 4
Number of Onboard USB 3.2 Ports: 2
Onboard S/PDIF Header: Yes

Physical Characteristics

Form Factor: Micro ATX
Width: 9.6"
Depth: 9.6"

Miscellaneous

Package Contents:

• Prime B550M-A (WI-FI) Desktop Motherboard
• 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)

Brand Compatibility: AMD
Environmentally Friendly: Yes
Environmental Certification: RoHS

Warranty

Limited Warranty: 3 Year