MB MSI™ AMD PRO B840M-P WIFI6E

Supports AMD Ryzen™ 9000/ 8000/ 7000 Series Desktop Processors

Socket AM5

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 5600+ 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.

• The DIMM slots on this motherboard only have single-sided latches.

• 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/.

1x HDMI™

Support HDMITM 2.1, maximum resolution of 4K 60Hz*

*Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.

1x PCI-E x16 slot

1x PCI-E x1 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_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 processors)

Realtek® ALC897

7.1-Channel High Definition Audio

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 2280/2260 devices

4x SATA 6G

M2_2 slot

• Supports up to PCIe 4.0 x4

• Supports up to PCIe 4.0 x2 (For Ryzen™ 8500/ 8300 Series processors)

*Please refer to the manual for M.2 SSD heatsink restrictions.

Supports RAID 0, RAID 1, and RAID 10 for SATA storage devices

Supports RAID 0 and RAID 1 for M.2 NVMe storage devices

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)

1x Power Connector(ATX_PWR)

1x Power Connector(CPU_PWR)

1x CPU Fan

1x Combo Fan (Pump_Sys Fan)

3x System Fan

2x Front Panel (JFP)

1x Chassis Intrusion (JCI)

1x Front Audio (JAUD)

1x Com Port (JCOM)

1x Tuning Controller connector(JDASH)

3x 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

Wi-Fi 6E

The Wireless module is pre-installed in the M.2 (Key-E) slot

Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ 6GHz* (160MHz) up to 2.4Gbps

Supports 802.11 a/ b/ g/ n/ ac/ ax

Supports Bluetooth® 5.3**, FIPS, FISMA

* 6GHz band support may depend on every country’s regulations and Wi-Fi 6E 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.

4x EZ Debug LED

1x EZ Memory Detection LED

1. Clear CMOS Button
2. HDMI™
3. USB 10Gbps Type-A
4. USB 2.0
5. 2.5G LAN
6. Wi-Fi / Bluetooth
7. Audio connectors
8. Flash BIOS Button
9. USB 10Gbps Type-C
10. USB 5Gbps Type-A