Introduction

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.

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.

DIRECT 7+2+1 POWER DESIGN
Unleash and sustain the maximum performance with a VRM design built with a total of 7+2+1 digital power phases. With an 8-pin power connector, PRO B840-P WIFI is ready for the challenge of heavy-loading tasks.

Extended Heatsink
Extended Heatsink enlarges the surface of heat dissipation and maintain the performance at heavy loads.

M.2 Shield Frozr
Strengthened M.2 thermal solution helps keep M.2 SSD safe and ensures incredible performance.

7W/mK Thermal Pad & Additional Choke Pad
High-quality 7W/mK MOSFET thermal pads and additional choke thermal pads ensure stable performance when all cores are runnging at high speed.

Enlarged Chipset Heatsink
The enlarged heatsink is designed to reduce dust and noise and capable of maintaining high efficiency of heat dissipation.

HIGH-BANDWIDTH AND LOW-LATENCY NETWORK
MSI's premium network solution provides incredible data transfer speed for demanding users.

BUILD FOR THE MOST ADVANCED PC FOR GAMING AND CREATING
When only the fastest will do, an AMD X800-series motherboard delivers. With USB 4.0 onboard along with robust overclocking1 capabilities, featuring faster dual-channel DDR5 memory support, AMD EXPO™ technology and PCIe® 5.0 support for both graphics and NVMe, you can play the most demanding games and deliver your biggest projects with the revolutionary performance of an AMD X800-series motherboard and AMD Ryzen™ 9000, 8000, and 7000 Series processors.

Processor

Processor manufacturer

AMD

Processor socket

Socket AM5

Compatible processor series

AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series

Supported processor sockets

Socket AM5

Maximum internal memory supported by processor

256 GB

Memory

Supported memory types

DDR5-SDRAM

Number of memory slots

4

Memory slots type

DIMM

Memory channels

Dual-channel

ECC ?ompatibility

Non-ECC

Supported memory clock speeds

4800,5600,8000 MHz

Supported memory clock speed (max)

8000 MHz

Maximum internal memory

256 GB

Storage controllers

Supported storage drive types

HDD & SSD

Supported storage drive interfaces

M.2, Micro SATA III

Number of HDDs supported

4

Number of storage drives supported

6

RAID support

Yes

RAID levels

0, 1, 10

Internal I/O

USB 2.0 connectors

4

USB 3.2 Gen 1 (3.1 Gen 1) connectors

2

USB 3.2 Gen 2 (3.1 Gen 2) connectors

1

Number of SATA III connectors

4

Total number of SATA connectors

4

Number of CPU fan connectors

1

Number of chassis fan connectors

5

Number of water pump connectors

1

RGB LED pin header

Yes

Number of RGB LED pin headers

3

Rear panel I/O ports

USB 2.0 ports quantity

4

USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity

2

USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity

1

USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity

1

Ethernet LAN (RJ-45) ports

1

HDMI ports quantity

1

HDMI version

2.1

Network

Ethernet LAN

Yes

Ethernet interface type

2.5 Gigabit Ethernet

Wi-Fi

Yes

Top Wi-Fi standard

Wi-Fi 7 (802.11be)

Wi-Fi standards

802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax), Wi-Fi 7 (802.11be)

Bluetooth

Yes

Bluetooth version

5.4

Features

Motherboard chipset

AMD B840

Audio chip

Realtek ALC897

Audio output channels

7.1 channels

Product colour

Black

Component for

PC

Motherboard form factor

ATX

Motherboard chipset family

AMD

Windows operating systems supported

Windows 11 x64

Expansion slots

PCI Express x16 (Gen 3.x) slots

4

PCI Express x16 (Gen 4.x) slots

1

Number of M.2 (M) slots

2

1st M.2 largest key size

2280

1st M.2 highest PCI Express generation

4.0

2nd M.2 largest key size

22110

2nd M.2 highest PCI Express generation

4.0

BIOS

BIOS type

UEFI AMI

ACPI version

6.5

System Management BIOS (SMBIOS) version

3.7

Weight & dimensions

Width

243.8 mm

Depth

304.8 mm