





MSI B840 GAMING PLUS WIFI AM5 Motherboard
- CPU socket
- AM5
- Chipset (MB)
- AMD B840 MB
- Form factor
- ATX
- Supported memory
- DDR5
- Number of memory slots
- 4
Description
MSI B840 GAMING PLUS WIFI AM5 is an ATX motherboard for the AM5 platform, aimed at mid-range gaming and productivity configurations. It combines the current AMD B840 chipset with support for Ryzen 9000, 8000, and 7000 series, so you can also think about future upgrades. The memory is entirely DDR5 with a capacity of up to 256 GB, which is more than enough for heavy gaming, streaming, and work. Add to that the built-in Wi-Fi 7 and you get a quite balanced foundation for a modern gaming machine.
What you get: four DDR5 slots with up to 8000 MHz (O.C.) provide room for fast RAM, which directly helps with lower latency and better FPS with Ryzen processors. The two M.2 PCIe 4.0 x4 slots (both from the CPU) allow you to install up to two very fast NVMe SSDs – one standard 2280 and a second up to 22110 for longer devices, which is convenient for bulkier or “enterprise” NVMe drives. The four SATA3 6.0 Gb/s ports cover your needs for HDD and older SSDs, and support for RAID 0/1/10 is a plus if you are chasing either speed or data redundancy. The networking part is also well secured – 2.5G LAN plus Wi-Fi 7 and Bluetooth 5.4 give you a stable connection and freedom of connection without cables. The audio with Realtek ALC897 7.1-Channel is fully sufficient for gaming, movies, and voice chat without the need for a separate sound card.
- CPU socket AM5 with AMD B840 chipset – ready for Ryzen 9000, 8000, and 7000 series, covering the entire current range of AMD desktop processors.
- 4 x DDR5 slots with up to 256 GB and frequencies up to 8000 MHz (O.C.), providing sufficient capacity and speed for gaming, streaming, and heavy applications.
- Dual-channel memory – higher bandwidth compared to single-channel mode and more stable performance for Ryzen.
- 2 x M.2 PCIe 4.0 x4 slots (from CPU) – M.2_1 for 2280/2260, M.2_2 for 22110/2280/2260, allowing fast NVMe SSDs for the operating system and games.
- 4 x SATA3 6.0 Gb/s with RAID 0/1/10 – flexibility for combining HDD and SSD with options for speed or data redundancy.
- 5 x PCI-E x16 slots – the main PCI_E1 is PCIe 4.0 x16 from CPU for GPU, plus additional PCIe 3.0 slots for expansion cards (audio, capture, network).
- Wi-Fi 7 (802.11be), Bluetooth 5.4 and Dragon RTL8125BG 2.5G LAN – modern wireless and wired connectivity for low latency in gaming and fast transfer.
- Realtek ALC897 7.1-Channel HD Audio – sufficiently quality sound for gaming, movies, and music without mandatory external sound card.
- A rich set of USB: up to 8 x USB 2.0 (front/rear panel), 4 x USB 5Gbps (Type-A and Type-C) and 2 x USB 10Gbps (Type-A and Type-C) for fast external drives and peripherals.
- ATX form factor with standard 24-pin + 8-pin power connectors – easy integration into most mid- and full-tower cases.
It is suitable if you are planning a gaming or all-round configuration on AM5 with the option for future upgrade to a newer Ryzen, and want Wi-Fi 7 and 2.5G LAN directly from the motherboard. It is also a good choice for streamers and content creators who use very fast NVMe storage and plenty of RAM. If you are chasing extreme overclocking or multi-GPU wonders, you should rather look towards higher-end platforms.
The most sensible aspect here is the combination of modern AM5 support, fast DDR5 memory, PCIe 4.0 M.2, and current network connectivity (Wi-Fi 7 + 2.5G LAN), all gathered in one ATX motherboard that covers almost all real needs of a modern gaming build.
Full specifications
- Manufacturer
-
MSI
- CPU socket
-
AM5
- Chipset (MB)
- AMD B840
- Form factor
- ATX
- Supported processors
-
Supports AMD Socket AM5 Ryzen™ 9000, 8000 and 7000 Series Processors
- Supported memory
-
DDR5
- Number of memory slots
- 4
- Maximum RAM capacity
- 256 GB
- Memory frequency (MHz)
-
up to 8000MHz (O.C.)
- Support for dual-channel memory
- Yes
- Built-in audio
-
Realtek ALC897 Codec7.1-Channel High Definition Audio
- Built-in Wi-Fi
-
Wi-Fi 7 (802.11be)
- Bluetooth version
- Bluetooth V5.4
- Built-in LAN
-
1 x Dragon RTL8125BG 2.5 Gigabit LAN 10/100/1000/2500 Mb/s
- SATA interface
- 4 x SATA3 6.0 Gb/s
- RAID support
- 0,1,10
- M2 slot
-
2 x M.2M.2_1 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280/2260 devicesM.2_2 Source (From CPU) supports up to PCIe 4.0 x4 , supports 22110/2280/2260
- Expansion slots
-
5 x PCI-E x16 slotPCI_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)
- Power connector
-
1 x 24-pin1 x 8-pin
- Processor generation
-
7th generation8th generation9th generation
- Warranty
- 36 months
- OS
-
Support for Windows 10 and 11 64-bit
- USB ports
-
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)
- Rear I/O panel
-
Clear CMOS ButtonUSB 10Gbps (Type-A)USB 2.02.5G LANWi-Fi / BluetoothAudio connectorsFlash BIOS ButtonHDMI™ 2.1 PortUSB 10Gbps (Type-C)USB 5Gbps (Type-A)
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