Components > Motherboards > AMD Socket AM5

MSI B840 Gaming Plus WiFi Motherboard

  • Supports AMD Ryzen 9000 / 8000 / 7000 Series Desktop Processors
  • Supports DDR5 Memory, Dual Channel DDR5 8000+ MT/s (OC)
  • Frozr Guard: Extended Heatsink, MOSFET thermal pads rated for 7W/mK, additional choke thermal pads and EZ M.2 Shield Frozr II are built for high performance system and non-stop experience
  • High-speed Connectivity: Full-speed Wi-Fi 7 with 2.5G LAN - The latest solution for professional and multimedia use, delivering secure, stable, and high-speed networking and data transmission
  • Ultra Performance: 7+2+1 Phase Direct CPU Power, 8-pin CPU power connector, Core Boost, Memory Boost, 6-layer PCB with 2oz thickened copper
  • Lightning Fast Game experience: PCIe 4.0 slot, Lightning Gen 4 x4 M.2, Front USB Type-C
  • EZ DIY: EZ M.2 Shield Frozr II, EZ M.2 Clip II, EZ PCIe Clip II and EZ Antenna
  • Audio Boost: Reward your ears with studio-grade sound quality for the most immersive gaming experience

[SKU] MB-MSI-B840GPWIFI

Chipset AMD B840
CPU Supports AMD Ryzen™ 9000/ 8000/ 7000 Series Desktop Processors
Socket AM5
Memory 4x DDR5 UDIMM, Maximum Memory Capacity 256GB
Memory Support DDR5 8000 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s
Ryzen™ 9000 Series Processors max. overclocking frequency:
• 1DPC 1R Max speed up to 8000+ MT/s
• 1DPC 2R Max speed up to 6400+ MT/s
• 2DPC 1R Max speed up to 6400+ MT/s
• 2DPC 2R Max speed up to 4800+ MT/s

Supports AMD POR Speed and JEDEC Speed
Supports Memory Overclocking and AMD EXPOTM
Supports Dual-Channel mode
Supports Non-ECC, Un-buffered memory
Supports CUDIMM, Clock Driver bypass mode only*

* 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.
• Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the product’s Support page or visit https://www.msi.com/support/.
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 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)

PCI_E1 slot
• Supports PCIe 4.0 x16 (For Ryzen™ 9000/ 7000 Series processors)
• Supports PCIe 4.0 x8 (For Ryzen™ 8700/ 8600/ 8400 Series processors)
• Supports PCIe 4.0 x4 (For Ryzen™ 8500/ 8300 Series processor)
Audio Realtek® ALC897
7.1-Channel High Definition Audio
Storage 2x M.2
M.2_1 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280/2260 devices
M.2_2 Source (From CPU) supports up to PCIe 4.0 x4 , supports 22110/2280/2260 devices
4x SATA 6G

M2_2 slot
• Supports up to PCIe 4.0 x4 (For Ryzen™ 9000/ 7000 Series processors)
• Supports up to PCIe 3.0 x4 (For Ryzen™ 8700/ 8600/ 8400 Series processors)
• Supports up to PCIe 3.0 x2 (For Ryzen™ 8500/ 8300 Series processor)

*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
The Wireless module is pre-installed in the M.2 (Key-E) slot
Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ 6GHz* (320MHz) up to 5.8Gbps
Supports 802.11 a/ b/ g/ n/ ac/ ax/ be

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.
** The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendor’s website for details. Bluetooth 5.4 will be ready in Windows 11 version 24H2.
LED FEATURE 4x EZ Debug LED
BACK PANEL PORTS
  1. Clear CMOS Button
  2. USB 10Gbps (Type-A)
  3. USB 2.0
  4. 2.5G LAN
  5. Wi-Fi / Bluetooth
  6. Audio connectors
  7. Flash BIOS Button
  8. HDMI™ 2.1 Port
  9. USB 10Gbps (Type-C)
  10. USB 5Gbps (Type-A)
OPERATING SYSTEM Support for Windows® 11 64-bit
BOX CONTENT
PCB Info ATX
243.84mmx304.8mm
MSI B840 Gaming Plus WiFi Motherboard
MSI B840 Gaming Plus WiFi Motherboard
MSI B840 Gaming Plus WiFi Motherboard
MSI B840 Gaming Plus WiFi Motherboard
MSI B840 Gaming Plus WiFi Motherboard
Images provided in good faith but are for illustrative purposes only. Actual product may differ as manufacturer may have revised the item since its original listing. If you need clarification before ordering please contact us prior to ordering.