The MSI PRO B840M-P WIFI6E is a Micro-ATX motherboard built on the AMD B840 chipset, designed for use with AMD Ryzen 7000, 8000, and 9000 Series processors via the Socket AM5 platform. Its compact black form factor measures 244 x 243.8 mm, making it a solid choice for space-efficient builds without compromising on features. The board supports DDR5 memory across four DIMM slots in dual-channel configuration, with a maximum capacity of 256 GB and clock speeds ranging from 4800 MHz up to 8000 MHz via overclocking.
Connectivity and Expansion
The MSI PRO B840M-P WIFI6E offers extensive connectivity options. Two PCIe 4.0 M.2 slots support drives up to 2280 in size, while four SATA III ports provide additional storage flexibility. Expansion is covered by two PCIe x16 slots and one PCIe 3.0 x1 slot. On the USB front, the board features USB 3.2 Gen 2 Type-A and Type-C ports, USB 3.2 Gen 1 ports, and multiple USB 2.0 connections, complemented by five chassis fan connectors for thorough system cooling management.
Wireless and Audio Capabilities
Networking is a strong suit of this motherboard, featuring built-in Wi-Fi 6E (802.11ax) for fast and low-latency wireless performance alongside a Realtek RTL8125D 2.5G wired LAN controller. Bluetooth 5.3 is also included for seamless peripheral pairing. Audio is handled by the Realtek ALC897 chip, delivering 7.1-channel surround sound output for an immersive listening experience.
Product number manufacturer:
PRO B840M-P WIFI6E
Audio
BIOS
Connectivity
USB 3.2 (Gen 1) type A ports:
4
USB 3.2 (Gen 1) type C ports:
1
USB 3.2 (Gen 2) type A ports:
1
USB 3.2 (Gen 2) type C ports:
1
Expansion slots
PCI Express 3.0 x1 slots:
1
Internal I/O
1st M.2 maximum slot size:
2280
1st M.2 slot PCI Express generation:
4.0
2nd M.2 maximum slot size:
2280
2nd M.2 slot PCI Express generation:
4.0
Chassis fan connector(s):
5
USB 3.1 (3.1 Gen 2) connectors:
1
USB 3.1 (Gen 1) header(s):
2
Memory
Supported memory clock speeds:
4800 MHz
Supported memory clock speeds (OC):
8000 MHz
Networking
Network technology (wired):
Wi-Fi 1 (802.11b), Wi-Fi 2 (802.11a), Wi-Fi 3 (802.11g), Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax)
Physical characteristics
Processor
Compatible processor series:
AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Sockets
Technical details
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