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The B840 GAMING PLUS WIFI is crafted to offer extensive connectivity, versatile tools, and a premium Wi-Fi solution for gamers seeking a comprehensive experience. Featuring full-speed Wi-Fi 7, 2.5G LAN, PCIe 4.0 solution and exclusive EZ DIY features, it is ready for 24/7 non-stop gaming optimized for AMD Ryzen™ 9000 series processors.
Unleash and sustain excellent performance with an enhanced VRM design built with digital CPU power system, 8-pin power connector and exclusive Core Boost technology, the B840 GAMING PLUS WIFI is ready to sustain heavy gaming loadings.
The PCB design has been optimized for higher bandwidth and faster transfer speeds, which is also beneficial for reliable circuit transmission.
Connect and synchronize with MSI coolers and cases with strategically positioned pin-header locations including a dedicated pump-fan header.
MSI's premium network solution provides incredible data transfer speed for demanding users.
Wi-Fi 7 is the latest wireless solution that takes a huge leap forward with multiple improvements to meet the traffic demand brought and the growing number of wireless devices.

MSI Gaming series motherboards support all the latest storage standards, which allows users to connect any ultra-fast storage device. Start games faster, load levels faster and have a real advantage over your enemies.
MSI
B840
4711377286589
DDR5
ATX
AMD
Gaming
AM5
N/A
B840 GAMING PLUS WIFI
1 kg
N/A
| Chipset | AMD B840 |
|---|---|
| CPU | Supports AMD Ryzen™ 9000/ 8000/ 7000 Series Desktop Processors Socket AM5 |
| Memory | 4x DDR5 UDIMM, Maximum Memory Capacity 256GB Supports AMD POR Speed and JEDEC Speed * 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. |
| Onboard Graphics | 1x HDMI™ Support HDMI™ 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 slot |
| Audio | Realtek® ALC897 7.1-Channel High Definition Audio |
| Storage | 2x M.2 M2_2 slot *Please refer to the manual for M.2 SSD heatsink restrictions. |
| RAID | Supports RAID 0 and RAID 1 for M.2 NVMe storage devices |
| USB | 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® 8125BG 2.5G LAN |
| Internal IO | 1x Power Connector(ATX_PWR) 1x Power Connector(CPU_PWR) 1x CPU Fan 1x Combo Fan (Pump_Sys Fan) 4x System Fan 1x EZ Conn-header (JAF_1) 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 ports |
| WIRELESS LAN & BLUETOOTH | Wi-Fi 7 Solution Supports Bluetooth® 5.4**, MLO, 4KQAM * 6GHz band support may depend on every country’s regulations and Wi-Fi 7 will be ready in Windows 11 version 24H2. |
| LED FEATURE | 4x EZ Debug LED |