Asus PRIME B840M-A WIFI Gaming Desktop Motherboard

Marketing Information

PRIME B840M-A WIFI

ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen^™9000 series processors. The PRIME B840M-A WIFI motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It's designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications.

Performance | AI Solutions

ASUS AI Solutions include AI Advisor as your technical expert with expertise in PC performance.

AI Advisor

ASUS AI Advisor allows users to explore the functionality and advanced features of ASUS motherboards i...n a simple and straightforward way.

Performance | Digital Power Design

PRIME B840M-A WIFI features an 8+2+1 phase power design with discrete MOSFETs, ensuring efficient and stable power delivery for AMD processors plus steady performance for day-to-day use.

Specifications
Manufacturer: ASUS Computer International
Manufacturer Part Number: 90MB1J20-M0EAY0
Manufacturer Website Address: http://uk.asus.com
Brand Name: Asus
Product Line: Prime
Product Model: B840M-A WIFI
Product Name: PRIME B840M-A WIFI Gaming Desktop Motherboard
Product Type: Gaming Desktop Motherboard
Technical Information
AI-powered: Yes
Processor & Chipset
Chipset Manufacturer: AMD
Chipset Model: B840
Processor Socket: Socket AM5
Processor Supported:

• Ryzen 9
• Ryzen 8
• Ryzen 7

Memory
Number of Memory Slots: 4
Memory Form Factor:

• DIMM
• UDIMM

Maximum Memory Supported: 256 GB
Memory Technology: DDR5 SDRAM
Memory Speed Supported:

• 7600 MHz
• 3800 MHz

Error Checking: ECC
I/O Controller
Controller Type: Serial ATA/600
RAID Supported: Yes
RAID Levels:

• 0
• 1
• 5
• 10

Video
Onboard Video: CPU Dependent Video
Audio
Audio Channels: 7.1
Network & Communication
Bluetooth: Yes
Bluetooth Standard: Bluetooth 5.3
Gigabit Ethernet: Yes
2.5Gigabit Ethernet: Yes
Wireless LAN: Yes
Wireless LAN Standard: IEEE 802.11ax
I/O Expansions
Total Number of Expansion Slots: 4
PCI Express Standard:

• PCI Express 4.0
• PCI Express 3.0

Total Number of PCI Express Slots: 4
Number of PCI Express x16 Slots: 4
Interfaces/Ports
Total Number of USB Ports: 7
HDMI: Yes
HDMI Version: 2.1
DisplayPort: Yes
Number of Network (RJ-45) Ports: 1
Onboard Interfaces
Number of SATA Interfaces: 4
Number of M.2 Interfaces: 3
Total Number of Onboard USB Ports: 7
Number of Onboard USB 2.0 Ports: 4
Onboard S/PDIF Header: Yes
Physical Characteristics
Form Factor: Micro ATX
Width: 243.8 mm
Depth: 243.8 mm
Miscellaneous
Package Contents:

• PRIME B840M-A WIFI Gaming Desktop Motherboard
• 2 x SATA 6Gb/s cables
• 1 x ASUS WiFi Q-Antenna
• 1 x M.2 rubber package
• 2 x Screw packages for M.2 SSD
• 1 x Quick start guide

Brand Compatibility: AMD
Environmental Compliance: Restriction of Hazardous Substances (RoHS)
Warranty
Limited Warranty: 3 Year