Asus

Asus Prime B840M-A WIFI-CSM Gaming Desktop Motherboard - AMD B840 Chipset - Socket AM5 - Micro ATX (292938)

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SKU:
21105762
MPN:
292938
Availability:
Usually ships the same or next business day. In stock at our CA, IL, NJ warehouses.
Shipping:
Calculated at Checkout
Stock Update:
12/07/2025 11:57:58 AM PST
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$199.68

Bulk discount rates

Below are the available bulk discount rates for each individual item when you purchase a certain amount

Buy 2 - 3 and pay only $193.81 each 193.81
Buy 4 or above and pay only $190.51 each 190.51
Stock Update:
12/07/2025 11:57:58 AM PST

Description



This item is brand-new, factory sealed.

ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen9000 series processors. The PRIME B840M-A WIFI-CSM 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.

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.

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 in a simple and straightforward way.

Performance Digital Power Design

PRIME B840M-A WIFI-CSM 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.

  • 8 Vcore power
  • 2 SOC power
  • 1 Misc power

The multi-layered printed circuit board design quickly dissipates heat around the voltage regulators to improve overall system stability and provide the CPU with more overclocking headroom.

The Power Saving function contains several settings to easily optimize power consumption and maximize energy savings. You can enable a CPU power limit, darken Aura lighting and set the fan profile to a Power Saving mode. You can also toggle the Power Saver plan that is built into Microsoft Windows.

The Digi+ voltage-regulator module (VRM) delivers real-time control over voltage droop, automatically switching frequency and power-efficiency settings.

Enhanced DDR5 performance

Comprehensive memory tuning options are the cornerstone of PRIME motherboards. The PRIME B840M-A WIFI-CSM maximizes the potential of your DDR5 modules, from entry-level to extreme-speed kits.

Features

Environmental Compliance:

Restriction of Hazardous Substances (RoHS)
China Restriction of Hazardous Substances (China RoHS)
Taiwan Restriction of Hazardous Substances (Taiwan RoHS)
Waste Electrical and Electronic Equipment Directive (WEEE)

 

Country of Origin:   
China

 

Specs

Physical Characteristics
Form FactorMicro ATX
Width9.6"
Depth9.6"
Warranty
Limited Warranty3 Year
I/O Expansions
Total Number of Expansion Slots4
PCI Express Standard
Number of PCI Express x16 Slots4
Total Number of PCI Express Slots4
Memory
Memory TechnologyDDR5 SDRAM
Number of Memory Slots4
Memory Speed Supported7600 MHz
Memory Form Factor
Maximum Memory Supported192 GB
Error CheckingECC
General Information
Brand NameAsus
Manufacturer Website Addresshttp://usa.asus.com
Marketing InformationASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen

9000 series processors. The PRIME B840M-A WIFI-CSM 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.
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.
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 in a simple and straightforward way.
Performance Digital Power Design
PRIME B840M-A WIFI-CSM 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.
8 Vcore power
2 SOC power
1 Misc power
The multi-layered printed circuit board design quickly dissipates heat around the voltage regulators to improve overall system stability and provide the CPU with more overclocking headroom.
The Power Saving function contains several settings to easily optimize power consumption and maximize energy savings. You can enable a CPU power limit, darken Aura lighting and set the fan profile to a Power Saving mode. You can also toggle the Power Saver plan that is built into Microsoft Windows.
The Digi+ voltage-regulator module (VRM) delivers real-time control over voltage droop, automatically switching frequency and power-efficiency settings.
Enhanced DDR5 performance
Comprehensive memory tuning options are the cornerstone of PRIME motherboards. The PRIME B840M-A WIFI-CSM maximizes the potential of your DDR5 modules, from entry-level to extreme-speed kits.
Product TypeGaming Desktop Motherboard
Product NamePrime B840M-A WIFI-CSM Gaming Desktop Motherboard
ManufacturerASUS Computer International
Manufacturer Part NumberPRIME B840M-A WIFI-CSM
Product ModelB840M-A WIFI-CSM
Product LinePrime
Packaged Quantity1
Processor & Chipset
Chipset ManufacturerAMD
Processor Supported
Total Processor Supported1
Processor SocketSocket AM5
Chipset ModelB840
Technical Information
AI-poweredYes
Onboard Interfaces
Number of SATA Interfaces4
Total Number of Onboard USB Ports7
Number of M.2 Interfaces3
Number of Onboard USB 2.0 Ports4
Interfaces/Ports
S/PDIFYes
HDMI Version<li>2.1</li>
DisplayPortYes
HDMIYes
Total Number of USB Ports7
Number of Network (RJ-45) Ports1
I/O Controller
RAID SupportedYes
Controller TypeSerial ATA/600
RAID Levels
Video
Onboard VideoCPU Dependent Video
Network & Communication
Wireless LANYes
Wireless LAN StandardIEEE 802.11ax
BluetoothYes
Bluetooth StandardBluetooth 5.3
2.5Gigabit EthernetYes
Gigabit EthernetYes
Audio
Audio Channels7.1

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Warranty Information

All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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Asus Prime B840M-A WIFI-CSM Gaming Desktop Motherboard - AMD B840 Chipset - Socket AM5 - Micro ATX (292938)
$199.68