Product Overview

Build a modern AMD gaming PC with the MSI B840 GAMING PLUS WIFI, an ATX motherboard based on the AMD B840 chipset and designed for AMD’s AM5 platform.

The motherboard supports AMD Ryzen 9000, Ryzen 8000 and Ryzen 7000 Series desktop processors, making it suitable for new gaming PCs as well as performance-focused productivity systems.

With DDR5 memory support, PCIe 4.0 graphics connectivity, dual PCIe 4.0 M.2 slots, Wi-Fi 7, Bluetooth 5.4 and Realtek 2.5G LAN, the B840 GAMING PLUS WIFI provides a strong combination of modern connectivity and expansion for mainstream AM5 builds.

MSI also equips the board with an extended cooling design, EZ DIY features and a 7+2+1 Phase Direct CPU Power solution aimed at stable everyday gaming performance.

Key Features

AMD AM5 Platform

The MSI B840 GAMING PLUS WIFI uses the AMD Socket AM5 platform.

Official CPU support includes:

• AMD Ryzen 9000 Series
• AMD Ryzen 8000 Series
• AMD Ryzen 7000 Series

This gives builders access to a wide range of current AM5 gaming and productivity processors.

AMD B840 Chipset

Built around the AMD B840 chipset, this motherboard focuses on modern AM5 connectivity, DDR5 memory and PCIe 4.0 expansion without moving into the higher-priced enthusiast chipset segment. MSI positions the model as a gaming-oriented ATX motherboard for Ryzen AM5 systems.

DDR5 Memory — Up to 256GB

The motherboard includes:

4× DDR5 UDIMM slots

with a maximum supported capacity of:

256GB

MSI specifies DDR5 support from standard JEDEC speeds through overclocked configurations reaching 8000+ MT/s with compatible Ryzen 9000 processors and memory configurations.

Memory Features

• Dual-channel DDR5
• AMD EXPO support
• Memory overclocking support
• Non-ECC unbuffered memory support
• Up to 256GB total capacity

Actual attainable memory speed depends on the processor, DIMM layout and installed memory kit.

PCIe Expansion

The motherboard provides five physical PCIe x16-size slots.

Slot Configuration

PCI_E1

• PCIe 4.0
• Up to x16 from CPU

PCI_E2

• PCIe 3.0
• Up to x1

PCI_E3

• PCIe 3.0
• Up to x1

PCI_E4

• PCIe 3.0
• Up to x4

PCI_E5

• PCIe 3.0
• Up to x1

Primary GPU Slot Bandwidth

The main PCI_E1 slot operates at:

• PCIe 4.0 x16 with Ryzen 9000 / 7000 Series CPUs
• PCIe 4.0 x8 with Ryzen 8700 / 8600 / 8400 Series processors
• PCIe 4.0 x4 with Ryzen 8500 / 8300 Series processors

This distinction is important when listing the motherboard because available PCIe lanes depend on the installed CPU.

Dual M.2 NVMe Storage

The MSI B840 GAMING PLUS WIFI includes:

2× M.2 slots

Both are CPU-connected and can support high-speed NVMe storage.

M.2_1

• Up to PCIe 4.0 x4
• Supports M.2 2260 / 2280 devices

M.2_2

• Up to PCIe 4.0 x4 with compatible Ryzen 9000 / 7000 CPUs
• Supports M.2 2260 / 2280 / 22110 devices

M.2_2 bandwidth varies with the installed processor.

4× SATA 6Gb/s

For additional SSDs and hard drives, the motherboard includes:

4× SATA 6Gb/s ports

MSI also lists RAID support including RAID 0, RAID 1 and RAID 10 for SATA storage, plus RAID 0 and RAID 1 for supported M.2 NVMe configurations.

Wi-Fi 7

The B840 GAMING PLUS WIFI includes an integrated Wi-Fi 7 solution.

MSI specifies support for:

• 2.4GHz
• 5GHz
• 6GHz
• Up to 320MHz channel width
• MU-MIMO
• MLO
• 4K QAM
• Theoretical wireless speeds up to 5.8Gbps

6GHz availability depends on local regulations, and MSI notes that full Wi-Fi 7 functionality is tied to compatible operating-system support.

Bluetooth 5.4

Integrated wireless functionality also includes Bluetooth 5.4 support according to MSI’s current specification.

This is useful for compatible:

• Wireless keyboards
• Mice
• Headsets
• Controllers
• Speakers
• Other Bluetooth peripherals

2.5G LAN

For wired networking, the motherboard uses a Realtek 8125BG 2.5Gb Ethernet controller.

A 2.5G LAN connection can provide higher network bandwidth than conventional Gigabit Ethernet when paired with compatible networking equipment.

7+2+1 Phase Power Design

MSI highlights a:

7+2+1 Phase Direct CPU Power design

along with:

• 8-pin CPU power connector
• Core Boost
• Memory Boost
• 6-layer server-grade PCB
• 2oz thickened copper

as part of the board’s performance design.

Extended Cooling Design

The board includes MSI’s thermal features designed for sustained gaming workloads.

Key elements include:

• Extended heatsink design
• 7W/mK MOSFET thermal pads
• Additional choke thermal pads
• EZ M.2 Shield Frozr II

These help manage temperatures around the power-delivery and M.2 storage areas.

HDMI 2.1 Display Output

The motherboard includes:

1× HDMI 2.1

with support for resolutions up to:

4K @ 60Hz

when paired with a processor featuring compatible integrated graphics.

A dedicated graphics card should be used for high-performance gaming configurations.

USB Connectivity

Rear USB

• 4× USB 2.0
• 2× USB 5Gbps Type-A
• 1× USB 10Gbps Type-A
• 1× USB 10Gbps Type-C

Front / Internal Support

• 4× USB 2.0
• 2× USB 5Gbps Type-A
• 1× USB 5Gbps Type-C

The front USB-C header is particularly useful for modern PC cases with a front Type-C port.

7.1-Channel Audio

The motherboard uses a Realtek ALC897 audio codec with:

7.1-channel High Definition Audio

support.

This provides integrated audio for gaming headsets, speakers and everyday multimedia use.

RGB & ARGB Support

For RGB gaming builds, the board provides:

• 2× Addressable Gen 2 RGB headers
• 1× standard RGB LED header

This allows compatible RGB fans, cases, liquid coolers and lighting accessories to be connected directly to the motherboard.

EZ DIY Features

The MSI B840 GAMING PLUS WIFI includes several features designed to simplify building and troubleshooting.

Flash BIOS Button

Allows BIOS updating using MSI’s supported Flash BIOS procedure.

Clear CMOS Button

Provides convenient access for resetting BIOS configuration.

EZ Debug LEDs

The motherboard includes 4× EZ Debug LEDs to help identify CPU, memory, graphics or boot-related issues during system assembly and troubleshooting.

EZ M.2 Shield Frozr II

Helps simplify installation while providing cooling for an installed M.2 SSD.

Full Specifications

These specifications are taken from MSI’s current official product documentation for the B840 GAMING PLUS WIFI.

CPU Compatibility

The motherboard supports AMD’s current AM5 processor families, including:

Ryzen 9000 Series

Suitable for high-performance gaming and productivity builds.

Ryzen 8000 Series

Supports Ryzen desktop APUs and compatible AM5 processors, although PCIe lane availability varies by CPU.

Ryzen 7000 Series

Provides broad compatibility with established AM5 gaming processors.

MSI lists all three processor generations as officially supported.

BIOS availability can affect support for individual CPU models, so checking MSI’s CPU support list before installation is recommended.

Gaming PC Build Compatibility

The MSI B840 GAMING PLUS WIFI is particularly suitable for builds using:

• AMD Ryzen 5 / Ryzen 7 / Ryzen 9 processors
• Modern NVIDIA GeForce GPUs
• AMD Radeon graphics cards
• DDR5 gaming memory
• PCIe 4.0 NVMe SSDs
• Wi-Fi 7 networking
• RGB and ARGB gaming components
• ATX gaming cases

Its full-size ATX format also provides substantially more expansion flexibility than compact micro-ATX motherboards.

What’s in the Box

Typical motherboard package contents include:

• MSI B840 GAMING PLUS WIFI Motherboard
• Wi-Fi antenna
• SATA cable(s)
• EZ M.2 accessories
• Documentation / Quick Installation Guide
• Regulatory documentation

Package contents can differ slightly by region, so the exact contents of 911-7E57-002 should follow the supplied retail package.

Why Choose MSI B840 GAMING PLUS WIFI?

The B840 GAMING PLUS WIFI offers a strong combination of features for an AM5 gaming build:

• Ryzen 9000 / 8000 / 7000 support
• DDR5 with up to 256GB capacity
• PCIe 4.0 graphics support
• Dual Gen4 M.2 storage
• Five full-length PCIe expansion slots
• Wi-Fi 7
• Bluetooth 5.4
• 2.5G LAN
• Front and rear USB-C
• RGB / ARGB headers
• EZ DIY features
• ATX expansion capability

For customers who want a modern AM5 platform with strong networking and expansion without moving to a premium enthusiast chipset, it is a practical gaming-focused option.

Why Buy from Empower Computers?

Buy the MSI B840 GAMING PLUS WIFI motherboard in Abu Dhabi from Empower Computers for genuine PC components and professional custom-PC support.

Empower Computers LLC — Since 2010

• Gaming and custom PC specialists
• Genuine MSI components
• Expert CPU, RAM, GPU and motherboard compatibility guidance
• Professional custom PC assembly
• BIOS and component installation assistance
• Physical showroom at Dalma Mall, Abu Dhabi
• UAE delivery available
• Support before and after purchase

FAQs

What processors does MSI B840 GAMING PLUS WIFI support?

It supports AMD Ryzen 9000, 8000 and 7000 Series desktop processors using the AM5 socket.

Does it support Ryzen 9000?

Yes. Ryzen 9000 Series support is officially listed by MSI.

How much RAM can it support?

The board has four DDR5 DIMM slots and supports up to 256GB of memory.

Does it support DDR5 8000?

MSI lists memory overclocking support reaching 8000+ MT/s with compatible Ryzen 9000 processors and appropriate DIMM configurations.

Does it have Wi-Fi 7?

Yes. It includes an integrated Wi-Fi 7 solution supporting 2.4GHz, 5GHz and 6GHz bands subject to regional availability.

Does it have Bluetooth?

Yes. MSI currently lists Bluetooth 5.4 support.

Does it have 2.5G Ethernet?

Yes. It uses the Realtek 8125BG 2.5G LAN controller.

How many M.2 SSDs can I install?

The motherboard includes two M.2 slots, both supporting PCIe NVMe storage.

Are both M.2 slots PCIe 4.0?

Both can operate up to PCIe 4.0 x4 with compatible processors. The second M.2 slot can run at lower PCIe bandwidth when certain Ryzen 8000 processors are installed.

Does it have five PCIe x16 slots?

It has five physical x16-length slots, but they do not all operate at x16 electrical bandwidth. MSI lists them as x16, x1, x1, x4 and x1 respectively.

Does it support PCIe 5.0 graphics cards?

A PCIe 5.0 graphics card is generally backward-compatible with a PCIe 4.0 x16 slot, but the motherboard’s primary graphics slot itself is PCIe 4.0, not PCIe 5.0.

Does it support AMD EXPO?

Yes. AMD EXPO memory profiles are officially supported.

Is it ATX?

Yes. MSI lists the board as ATX, measuring approximately 304.8 × 243.84mm.

Buy MSI B840 GAMING PLUS WIFI  Abu Dhabi / UAE

The MSI B840 GAMING PLUS WIFI 911-7E57-002 is a strong motherboard option for AMD AM5 gaming PCs in Abu Dhabi, Dubai and across the UAE.

Its combination of Ryzen 9000 support, DDR5, PCIe 4.0, dual M.2, Wi-Fi 7, Bluetooth 5.4 and 2.5G LAN makes it well suited to new gaming PCs and performance-focused custom builds.

Visit Empower Computers at Dalma Mall, Abu Dhabi for motherboard compatibility guidance, AMD processors, DDR5 memory, graphics cards, NVMe SSDs and complete custom gaming PC builds.

Summary

The MSI B840 GAMING PLUS WIFI is an AMD AM5 ATX motherboard based on the B840 chipset, designed for Ryzen 9000, 8000 and 7000 Series processors. It supports DDR5 memory up to 256GB, PCIe 4.0 graphics, dual M.2 NVMe storage, Wi-Fi 7, Bluetooth 5.4 and 2.5G Ethernet, making it a strong platform for modern gaming and productivity builds.