The MSI PRO B840-P WIFI is an ATX motherboard built on the AMD B840 chipset, designed for Socket AM5 processors including AMD Ryzen 7000, 8000, and 9000 Series. With its silver and black design, this board measures 244 x 304.8 mm and offers a solid foundation for productivity-focused builds. It features four DDR5 DIMM slots with dual-channel support and memory speeds ranging from 4800 MHz up to 8000+ MHz (OC), providing plenty of headroom for high-performance configurations.
Storage and Expansion
The MSI PRO B840-P WIFI is equipped with two M.2 slots, both running on PCIe 4.0, supporting sizes up to 2280 and 22110 respectively. Four SATA III connectors provide additional storage flexibility. For expansion, the board includes one PCIe 4.0 x16 slot, one PCIe 3.0 x16 slot, and one PCIe 3.0 x1 slot, catering to a wide range of add-in cards and configurations.
Connectivity and Wireless
On the connectivity front, the board delivers extensive USB support including USB 3.2 Gen 2 Type-A and Type-C ports, multiple USB 3.2 Gen 1 ports, and eight USB 2.0 ports. Networking is handled by a Realtek RTL8125 2.5G LAN controller, complemented by Wi-Fi 7 (802.11be) and Bluetooth 5.4 for cutting-edge wireless performance. Display output is provided via a single HDMI 2.1 port, and audio is managed by a Realtek ALC897 chip supporting 7.1-channel output.
Product number manufacturer:
PRO B840-P WIFI
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
PCI Express 3.0 x16 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:
22110
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:
4800,5600,8000 MHz
Supported memory clock speeds (OC):
8000+ (OC) MHz
Networking
Network technology (wired):
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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