MSI

MSI Pro B840-P WIFI Gaming Desktop Motherboard - AMD B840 Chipset - Socket AM5 - ATX (prob840-pwifi)

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SKU:
20974841
MPN:
prob840-pwifi
Availability:
Usually ships the same or next business day. In stock at our IL warehouse.
Shipping:
Calculated at Checkout
Stock Update:
09/14/2026 05:26:50 PM PST
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$186.79

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 $175.71 each 175.71
Buy 4 or above and pay only $172.50 each 172.5
Stock Update:
09/14/2026 05:26:50 PM PST
Frequently bought together:

Description



This item is brand-new, factory sealed.

PRO B840-P WIFI
PRO B840-P WIFI offers a simple design with a harmonious silver color scheme that perfectly matches both white and black PC builds. It is engineered with many exclusive features of MSI, a true Wi-Fi 7 with EZ Antenna, 2.5G LAN, and PCIe 4.0 M.2 with EZ M.2 Shield Frozr II, ready for the AMD Ryzen 9000 series processors.
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.Chipset
AMD B840CPU
Supports AMD Ryzen 9000/ 8000/ 7000 Series Desktop Processors
Socket AM5Memory
4x DDR5 UDIMM, Maximum Memory Capacity 256GB
Memory Support DDR5 8000 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s
Ryzen 9000 Series Processors max. overclocking frequency:
1DPC 1R Max speed up to 8000+ MT/s
1DPC 2R Max speed up to 6400+ MT/s
2DPC 1R Max speed up to 6400+ MT/s
2DPC 2R Max speed up to 5600+ MT/s
Supports AMD POR Speed and JEDEC Speed
Supports Memory Overclocking and AMD EXPOTM
Supports Dual-Channel mode
Supports Non-ECC, Un-buffered memory
Supports CUDIMM, Clock Driver bypass mode only
CUDIMM support and POR boot frequency may vary by CPU series, with manual overclocking available after boot. Certain CPUs may fail to boot, but future BIOS updates will improve compatibility.
The DIMM slots on this motherboard have single-sided latches.
Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the products Support page or visit https://www.msi.com/support/.Onboard Graphics
1x HDMI
Support HDMITM 2.1, maximum resolution of 4K 60Hz
Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.Slot
5x PCI-E x16 slot
PCI_E1 Gen PCIe 4.0 supports up to x16 (From CPU)
PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset)
PCI_E3 Gen PCIe 3.0 supports up to x1 (From Chipset)
PCI_E4 Gen PCIe 3.0 supports up to x4 (From Chipset)
PCI_E5 Gen PCIe 3.0 supports up to x1 (From Chipset)
PCI_E1 slot
Supports PCIe 4.0 x16 (For Ryzen 9000/ 7000 Series processors)
Supports PCIe 4.0 x8 (For Ryzen 8700/ 8600/ 8400 Series processors)
Supports PCIe 4.0 x4 (For Ryzen 8500/ 8300 Series processors)Audio
Realtek ALC897
7.1-Channel High Definition AudioStorage
2x M.2
M.2_1 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280/2260 devices
M.2_2 Source (From CPU) supports up to PCIe 4.0 x4 , supports 22110/2280/2260 devices
4x SATA 6G
M2_2 slot
Supports up to PCIe 4.0 x4 (For Ryzen 9000/ 7000 Series processors)
Supports up to PCIe 3.0 x4 (For Ryzen 8700/ 8600/ 8400 Series processors)
Supports up to PCIe 3.0 x2 (For Ryzen 8500/ 8300 Series processors)
Please refer to the manual for M.2 SSD heatsink restrictions.RAID
Supports RAID 0, RAID 1, and RAID 10 for SATA storage devices
Supports RAID 0 and RAID 1 for M.2 NVMe storage devicesUSB
4x USB 2.0 (Rear)
4x USB 2.0 (Front)
2x USB 5Gbps Type A (Rear)
2x USB 5Gbps Type A (Front)
1x USB 5Gbps Type C (Front)
1x USB 10Gbps Type A (Rear)
1x USB 10Gbps Type C (Rear)LAN
Realtek 8125D 2.5G LANInternal IO
1x Power Connector(ATX_PWR)
1x Power Connector(CPU_PWR)
1x CPU Fan
1x Combo Fan (Pump_Sys Fan)
4x System Fan
2x Front Panel (JFP)
1x Chassis Intrusion (JCI)
1x Front Audio (JAUD)
1x Com Port (JCOM)
1x Tuning Controller connector(JDASH)
2x Addressable V2 RGB LED connector (JARGB_V2)
1x RGB LED connector(JRGB)
1x TPM pin header(Support TPM 2.0)
4x USB 2.0 ports
2x USB 5Gbps Type A ports
1x USB 5Gbps Type C portsWIRELESS LAN AND BLUETOOTH
Wi-Fi 7
The Wireless module is pre-installed in the M.2 (Key-E) slot
Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ 6GHz (320MHz) up to 5.8Gbps
Supports 802.11 a/ b/ g/ n/ ac/ ax/ be
Supports Bluetooth 5.4, MLO, 4KQAM
6GHz band support may depend on every countrys regulations and Wi-Fi 7 will be ready in Windows 11 version 24H2.
The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendors website for details. Bluetooth 5.4 will be ready in Windows 11 version 24H2.LED FEATURE
4x EZ Debug LED
1x EZ Memory Detection LEDBACK PANEL PORTS
Clear CMOS Button
USB 10Gbps Type-A
USB 2.0
2.5G LAN
Wi-Fi / Bluetooth
Audio connectors
Flash BIOS Button
HDMI
USB 10Gbps Type-C
USB 5Gbps Type-AOPERATING SYSTEM
Support for Windows 11 64-bitPCB Info
ATX
243.84mmx304.8mmItem Dimension (L"xW"xH")
14 x 11 x 3

Weight
4 lbs

Warranty Information
3years

Features

Package Contents:   
  • PRO B840-P WIFI Gaming Desktop Motherboard
  • Quick Installation Guide
  • European Union Regulatory Notice
  • SATA Cable
  • 3 x EZ M.2 Clips II
  • EZ M.2 Clip II Remover
  • EZ Wi-Fi Antenna

 

Brand Compatibility:   
AMD

 

Specs

Physical Characteristics
Form FactorATX
Product ColorSilver
Color FamilySilver
Width12"
Depth9.6"
I/O Expansions
Number of PCI Express x1 Slots3
Total Number of Expansion Slots5
PCI Express Standard
Number of PCI Express x16 Slots2
Total Number of PCI Express Slots5
Memory
Memory TechnologyDDR5 SDRAM
Number of Memory Slots4
Memory Speed Supported
Memory Form Factor
Maximum Memory Supported256 GB
General Information
Brand NameMSI
Manufacturer Website Addresshttp://www.msi.com
Marketing InformationPRO B840-P WIFI
PRO B840-P WIFI offers a simple design with a harmonious silver color scheme that perfectly matches both white and black PC builds. It is engineered with many exclusive features of MSI, a true Wi-Fi 7 with EZ Antenna, 2.5G LAN, and PCIe 4.0 M.2 with EZ M.2 Shield Frozr II, ready for the AMD Ryzen 9000 series processors..
PRO SERIES 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.
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.
Product TypeGaming Desktop Motherboard
Product NamePRO B840-P WIFI Gaming Desktop Motherboard
ManufacturerMSI
Manufacturer Part NumberPROB840PWIFI
Product ModelB840-P WIFI
Product LinePro
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 Interfaces2
Number of Onboard USB 2.0 Ports4
Interfaces/Ports
HDMI Version<li>2.1</li>
HDMIYes
Number of USB 2.0 Ports4
Total Number of USB Ports8
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 802.11 a/b/g/n/ac/ax/be
BluetoothYes
Bluetooth StandardBluetooth 5.4
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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MSI Pro B840-P WIFI Gaming Desktop Motherboard - AMD B840 Chipset - Socket AM5 - ATX (prob840-pwifi)
$186.79