MSI 

MSI B850MPOWER MATX AM5 DDR5 MOTHERBOARD

Mfg Part Number:  B850MPOWER  
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Price: $272.48
Quantity:
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Last Updated: Aug 20, 2026
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B850MPOWER

The B850MPOWER motherboard, designed exclusively for extreme memory overclockers, features only 2 DIMM slots to ensure a clearer DDR5 memory signal, pushing the boundaries of memory overclocking. Teamed with MPOWER Alliance approved memory, gamers can achieve higher frequencies, delivering an enhanced performance experience.

READY FOR Ai PC

MSI motherboards are designed with advanced hardware and technology, well-supporting the demanding computing usage of gaming and AI. Moreover, we also introduce AI to MSI Center and BIOS, making everything more effortless than before.

Al Engine

provides several categories for you to sync the applications you want to perform and automatically optimizing them to create a comfortable environment.

AI LAN MANAGER

optimizes networking performance and minimizes latency, providing a seamless online experience.

Frozr Al Cooling

automatically adjusts fan duty to make sure the system stays in cool, stable and high performance.

Al Boost

is an MSI exclusive feature. It overclocks NPU to improve higher Al performance.

EZ DASHBOARD

Designed for optimal experience with overclocking setups, this exclusive accessory card integrates power, reset, clear CMOS buttons, and a debug LED, simplifying the reboot and testing procedure. Elevate the overclocking endeavors to new heights with this all-in-one solution, ensuring a smoother and efficient process

One Finger for EZ GPU Installation

The new EZ PCIe Clip II, located on the first slot, features the rebounding force mechanism that allows for easy removal of the graphics card by pressing the tail-like lock with one finger. Due to this exquisite design, users can uninstall the graphics cards effortlessly, even in the cramped case spaces.

12+2+1 Duet Rail Power System

Unleash and sustain maximum performance with a flagship VRM design built with a total of 12+2+1 digital power phases. Combining dual power connectors and 60A Smart Power Stage, B850MPOWER is ready for the challenge of high-end processors

HIGH-BANDWIDTH AND LOW-LATENCY NETWORK

MSI's premium network solution provides incredible data transfer speed for demanding users.

Wi-Fi 7 is the latest wireless solution that takes a huge leap forward with multiple improvements to meet the traffic demand brought and the growing number of wireless devices.

AI LAN Manager

MSI AI LAN Manager automatically classifies and prioritizes the latency-sensitive applications for online games, giving you the best online gaming experience with low latency.

MSI AI LAN MANAGER

  • Automatically prioritizes games above other applications
  • Allows to change applications' traffic priority
  • Allows to customize bandwidth for each application
  • Analysis Wi-Fi signals to select the best source.

The Isolated Analogy Structure for Audio Connectors

To provide clear voice, MSI develops a unique structure - Isolated Analogy Structure. The external metal framework of the audio connectors is separated from the internal layout, which ensures the sound quality crisp

Main Specification
General Information
Manufacturer MSI
Manufacturer Part Number B850MPOWER
Manufacturer Website Address http://www.msi.com
Brand Name MSI
Product Model B850MPOWER
Product Name B850MPOWER Gaming Desktop Motherboard
Product Type Gaming Desktop Motherboard
Technical Information
AI-powered Yes
Processor & Chipset
Chipset Manufacturer AMD
Chipset Model B850
Total Processor Supported 1
Processor Socket Socket AM5
Processor Supported Ryzen 9
Processor Supported Ryzen 7
Memory
Number of Memory Slots 2
Memory Form Factor UDIMM
Memory Form Factor DIMM
Memory Form Factor CUDIMM
Maximum Memory Supported 128 GB
Memory Technology DDR5 SDRAM
Memory Speed Supported 10200 MHz
Memory Speed Supported 4800 MHz
Memory Speed Supported 8400 MHz
Memory Speed Supported 5600 MHz
I/O Controller
Controller Type Serial ATA/600
RAID Supported Yes
RAID Levels 10
RAID Levels 1
RAID Levels 5
RAID Levels 0
Video
Onboard Video CPU Dependent Video
Audio
Audio Channels 7.1
Network & Communication
Bluetooth Yes
Bluetooth Standard Bluetooth 5.4
Gigabit Ethernet Yes
2.5Gigabit Ethernet Yes
Wireless LAN Yes
Wireless LAN Standard IEEE 802.11 a/b/g/n/ac/ax/be
I/O Expansions
Total Number of Expansion Slots 2
PCI Express Standard PCI Express 4.0
PCI Express Standard PCI Express 5.0
Total Number of PCI Express Slots 2
Number of PCI Express x4 Slots 1
Number of PCI Express x16 Slots 1
Interfaces/Ports
Total Number of USB Ports 9
S/PDIF Yes
HDMI Yes
HDMI Version

HDMI 2.1

Number of Network (RJ-45) Ports 1
Onboard Interfaces
Number of SATA Interfaces 2
Number of M.2 Interfaces 4
Total Number of Onboard USB Ports 7
Number of Onboard USB 2.0 Ports 4
Physical Characteristics
Form Factor Micro ATX
Width 9.6"
Depth 9.6"
Miscellaneous
Package Contents
  • B850MPOWER Gaming Desktop Motherboard
  • EZ Dashboard
  • EZ Wi-Fi Antenna
  • Cable Sticker
  • Quick Installation Guide
  • European Union Regulatory Notice
  • 1 to 2 EZ Conn-Cable (V1)
  • SATA Cable
  • EZ Front Panel Cable
  • EZ M.2 Clip II Remover
  • 3 x EZ M.2 Clip II
  • 1 x M.2 Screw
Compatibility
  • CPU: Supports all Socket AM5 AMD Ryzen 7000, 8000, and 9000 series desktop processors.
  • Memory: Features a 2-DIMM dual-channel layout optimized for extreme overclocking. It supports DDR5 memory speeds exceeding 10200+ MT/s (OC) and natively supports CUDIMM.
  • Expansion & PCIe: Equipped with one PCIe 5.0 x16 slot for high-end graphics cards and one PCIe 4.0 x4 slot.
  • Storage: Includes 4 M.2 slots (two Gen5 x4, one Gen4 x4, and one Gen4 x2) and 2 SATA 6G ports.
Brand Compatibility AMD
Warranty
Limited Warranty 3 Year
Additional Warranty Information

MSI motherboards purchased by end users will have a warranty period of 3 years (36 months) that covers damage due to regular usage but not physical damage caused to the motherboard. The warranty period will begin on the date of purchase the end user made from an authorized retailer if an invoice is provided as a proof of purchase. If the end user is unable to provide the invoice, then the warranty period will begin based off that product's manufactured date.

WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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