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MSI B840 GAMING PLUS WIFI

ATX Socket AM5 motherboard AMD B840 - 4x DDR5 - M.2 PCIe 4.0 - USB3.1 - PCI-Express 4.0 16x - LAN 2.5 GbE - Wi-Fi 7

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Overview

MSI B840 GAMING PLUS WIFI : AM5 gaming motherboard

The MSI B840 GAMING PLUS WIFI motherboard is equipped with the AMD B840 chipset, which supports AMD Ryzen processors on socket AM5, more specifically the 7000/8000/9000 series. As part of the MSI GAMING range, the B840 GAMING PLUS WIFI will be at the heart of your gamer PC, offering the functionality needed to support PCIe 4.0 graphics cards and SSDs, while being more affordable than models equipped with the X870 and B850 chipsets.

When it comes to networking, the MSI B840 GAMING PLUS WIFI comes with full connectivity, including a 2.5 GbE LAN port and Wi-Fi 7 / Bluetooth 5.4 for wireless connectivity. For data transfer, the motherboard offers a number of USB ports, two of which are standard 3.1 (10 Gbps).

MSI B840 GAMING PLUS WIFI

  • Support for AMD Ryzen 7000/8000/9000 series desktop processors
  • Support for DDR5 memory up to 256 GB
  • 2 x4 PCIe 4.0 M.2 slots (one slot works as x2 with a Ryzen 5 8500G)
  • High-definition 7.1 audio with Realtek ALC897 chipset
  • HDMI 2.1 output, 4K @ 60 Hz compatible
  • 2.5 GbE LAN connector and Wi-Fi 7 for a fast, stable connection

Play in the best conditions

The high frequencies of AMD Ryzen processors are a real advantage when it comes to gaming. Choose the right components and design a super-powerful Gaming PC that's latency-free and ready when you need it. Get the edge over your opponents and reach new heights with AMD Ryzen 9000/8000/7000 processors and AMD AM5 motherboards.

The AMD Ryzen 9000 processors deliver performance in every area. They will enable you to create faster, achieve your objectives more quickly and save time all the time. From 3D rendering to exporting large video files, design, deliver and get the job done with multiple processing threads and dedicated video accelerators.

Specifications
Select your criteria

General information

Product name

MSI B840 GAMING PLUS WIFI

Brand

MSI

Model

B840 GAMING PLUS WIFI

Processor

Processor support

AMD AM5

Number of CPUs supported

1

Chipset

Chipset

AMD B840

Memory

Memory format

4 X DIMM 288 pins (DDR5)

Memory Frequency(ies)

DDR5 6000 MHz
DDR5 5800 MHz
DDR5 5600 MHz
DDR5 5400 MHz
DDR5 5200 MHz
DDR5 5000 MHz
DDR5 4800 MHz

Memory type

DDR5

Memory technology

Dual Channel

Maximum RAM capacity per slot

64 GB

Maximum RAM capacity

256 GB

Graphic

Integrated graphics controller

No

Compatible graphics core integrated in the CPU

Yes

Expansion slots

Graphic connector(s)

1 X PCI Express 4.0 x16

Number and Type of slots

3 X PCI Express 3.0 x16 (x1)
1 X PCI Express 4.0 x16 (x4)

Multi-GPU type

None

Audio

Audio Chipset

Realtek ALC897

Number of audio channels

8

Network

Number of ports/Ethernet controler

Realtek RTL8125D

Network standard(s)

2.5 Gbps Gigabit Ethernet (2.5 GbE)
Wi-Fi 7
Bluetooth 5.4

Wi-Fi

Yes

Storage

RAID supported

Yes

Hard drives connectors

2 X M.2 - PCI-E 4.0 x4
4 X Serial ATA 6Gb/s (SATA Revision 3)

Number of M.2 slot(s)

2

Supported RAID Modes

10
1
0

Connectivity

Motherboard connector location

Standard connectors (on the motherboard)

Rear panel connectors

2 X USB 3.0
1 X USB 3.1
1 X HDMI Female
1 X RJ45 Female
BIOS Flash Update
3 X 3.5mm Jack Female Stereo
2 X SMA
4 X USB 2.0
1 X USB 3.1 Type C

Additional connectors

1 X Internal USB 3.0 Type C
1 X Serial (RS-232)
Chassis intrusion
2 X Internal USB 3.0
4 X Internal USB 2.0
1 X ATX 24 Pin
1 X +12V (Power supply P8)
Front panel audio
2 X Addressable LED RGB connector(s)
1 X LED RGB connector(s)

Physical characteristics

Motherboard format

ATX

Length

305 mm

Width

244 mm

Equipment

Advanced overclocking features

No

Use

Gaming

LED

No

Warranties

Commercial warranty

Legal warranty

Safety Information

Responsible person

MSI Computer Europe B.V

Postal address

Science Park Eindhoven 5706 5692 ER Son, the Netherlands

Electronic Address

gpsr@msi.com

Product referenced on 6 Jan 2025

Customer reviews
Global rating
10/10
based on 2 reviews Editorial and moderation guide
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    2 reviews
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  • by GaelS
    Posted on 31 Jul 2025
    Bought on 17 Jun 2025 from LDLC
    Number of reviews: 10 Average rating: 10

    gaming-oriented

    Following the advice of LDLC's experts, I opted for this versatile motherboard, which is especially well-suited to gaming!

    Review automatically translated
  • by LaurentC
    Posted on 21 Mar 2025
    Bought on 20 Jan 2025 from LDLC
    Number of reviews: 1 Average rating: 10

    Excellent customer service.

    I ordered 2 identical motherboards from LDLC and after mounting them on PCs, one had a problem recognising the RAM bars. Diagnosis by LDLC: some pins on the processor socket were bent. Back to LDLC after sales service (postage prepaid!) and free repair! Super happy with this support and I will buy again from LDLC. Great job!

    Review automatically translated

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