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MSI B840M-B Gaming Desktop Motherboard - AMD B840 Chipset - Socket AM5 - Micro ATX

Part #: 1-2729539

MSI B840M-B Gaming Desktop Motherboard - AMD B840 Chipset - Socket AM5 - Micro ATX

Part #: 1-2729539 MFG Part #: PROB840MB UPC #: 824142430972
$130.64
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About the MSI PRO B840M-B

PRO B840M-B

PRO B840M-B is engineered with many exclusive features of MSI, PCIe 4.0 M.2, EZ PCIe Clip II, 2.5G LAN, and Front Type-C, ready for the AMD Ryzen 9000 series processors.

PRO BUSINESS ELEGANCE

The PRO Series is tailored to professionals from all walks of life. The lineup features impressive performance and high quality, while aiming to provide users incredible experience. Users who care about productivity and efficiency can definitely count on the MSI PRO Series to assist you with multitasking and increasing efficiency.

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.

AI 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 AI Cooling

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

AI Boost

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

PRO B840M-B

PRO B840M-B is engineered with many exclusive features of MSI, PCIe 4.0 M.2, EZ PCIe Clip II, 2.5G LAN, and Front Type-C, ready for the AMD Ryzen 9000 series processors.

PRO BUSINESS ELEGANCE

The PRO Series is tailored to professionals from all walks of life. The lineup features impressive performance and high quality, while aiming to provide users incredible experience. Users who care about productivity and efficiency can definitely count on the MSI PRO Series to assist you with multitasking and increasing efficiency.

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.

AI 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 AI Cooling

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

AI Boost

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

Technical Specifications of the MSI PRO B840M-B

General Information


Manufacturer MSI
Manufacturer Part Number PROB840MB
Manufacturer Website Address http://www.msi.com
Brand Name MSI
Product Series PRO
Product Model B840M-B
Product Name PRO B840M-B Gaming Desktop Motherboard
Product Type Gaming Desktop Motherboard

Processor & Chipset


Chipset Manufacturer AMD
Chipset Model B840
Total Processor Supported 1
Processor Socket Socket AM5
Processor Supported Ryzen 7Ryzen 9

Technical Information


AI-powered Yes

Memory


Number of Memory Slots 2
Memory Form Factor DIMMUDIMM
Maximum Memory 128 GB
Memory Technology DDR5 SDRAM
Memory Speed Supported 8000 MHz4800 MHz7200 MHz5600 MHz

I/O Controller


Controller Type Serial ATA/600
RAID Supported Yes
RAID Levels 1010

Video


Onboard Video CPU Dependent Video

Audio


Audio Channels 7.1

Network & Communication


Gigabit Ethernet Yes
2.5Gigabit Ethernet Yes

I/O Expansions


Total Number of Expansion Slots 2
PCI Express Standard PCI Express 4.0PCI Express 3.0
Total Number of PCI Express Slots 2
Number of PCI Express x1 Slots 1
Number of PCI Express x16 Slots 1

Interfaces/Ports


Total Number of USB Ports 6
Number of USB 2.0 Ports 2
VGA Yes
HDMI Yes
HDMI Version

2.1

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 7
Number of Onboard USB 2.0 Ports 4

Physical Characteristics


Form Factor Micro ATX
Height 2.6"
Width 9.6"
Depth 8.9"
Weight (Approximate) 2.20 lb

Miscellaneous


Package Contents
  • PRO B840M-B Gaming Desktop Motherboard
  • European Union Regulatory Notice
  • Quick Installation Guide
  • EZ M.2 Clip II Remover
  • 2 x EZ M.2 Clip II
  • I/O Shield
  • SATA Cables
Brand Compatibility AMD

Warranty


Limited Warranty 3 Year
Additional Warranty Information

3 years - Warranty period of 36 months applies on new retail MSI motherboards.

Ratings and Reviews

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