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Unleash and sustain the maximum performance with a VRM design built with a total of 7+2+1 digital power phases. With an 8-pin power connector, PRO B840-P WIFI is ready for the challenge of heavy-loading tasks.
The PCB design has been optimized for higher bandwidth and faster transfer speeds, which is also beneficial for reliable circuit transmission.
The High-Efficiency Mode is designed to optimize memory performance by increasing memory bandwidth and reducing latency. With the four sets of RAM timing settings, it allows users to find out the optimal configuration based on the quality of their memory modules.
The 4-pin, 8-pin, and 24-pin power connectors of MSI motherboards are all designed with solid pins. The solid pin design allows for a more stable transmission of 12V power to the CPU, even when handling high current loads.
An extra layer of sponge materials along with corrosive resistance IO Shield to help improve static electricity and reduce electromagnetic radiation noise from the system as well as much more durable compare to traditional IO Shields.
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.


When only the fastest will do, an AMD X800-series motherboard delivers. With USB 4.0 onboard along with robust overclocking1 capabilities, featuring faster dual-channel DDR5 memory support, AMD EXPO™ technology and PCIe® 5.0 support for both graphics and NVMe, you can play the most demanding games and deliver your biggest projects with the revolutionary performance of an AMD X800-series motherboard and AMD Ryzen™ 9000, 8000, and 7000 Series processors.
MSI
B840
4711377286596
DDR5
MSI PRO
ATX
AMD
Gaming
AM5
N/A
PRO B840-P 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 HDMITM 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, RAID 1 and RAID 10 for SATA 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® 8125D 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 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 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 |