The MSI PRO B840-S EVO WIFI6E is an ATX motherboard designed for AMD processors, built around the AMD B840 chipset and supporting Socket AM5. It is compatible with AMD Ryzen 7000, 8000, and 9000 Series processors, making it a solid foundation for a wide range of desktop builds. The board features a clean black design and measures 305 x 244 x 304.8 mm, fitting standard ATX cases. With support for up to 256 GB of DDR5 memory across 4 DIMM slots in dual-channel configuration, and memory speeds ranging from 4800 MHz up to 8000 MHz with overclocking, this board offers strong memory performance potential.
Storage and Expansion
The MSI PRO B840-S EVO WIFI6E provides three M.2 slots, with the first supporting up to 2280 form factor drives and the second extending to 22110, both running on PCIe 4.0. Four SATA III connectors offer additional storage options. A single PCIe 4.0 x16 slot is available for a dedicated graphics card, providing a clear upgrade path for demanding tasks.
Connectivity and Audio
Wireless connectivity is handled by Wi-Fi 6E (802.11ax) combined with Bluetooth 5.3, while wired networking uses a Realtek RTL8125D controller supporting 2.5G speeds. The board provides extensive USB options including USB 3.2 Gen 2 Type-A and Type-C ports. Video output is available via a single HDMI 2.1 port. Audio is managed by a Realtek ALC897 chip delivering 7.1 channel sound, rounding out a well-connected package.
Product number manufacturer:
PRO B840-S EVO 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
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 MHz
Supported memory clock speeds (OC):
8000 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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