The MSI PRO B850-S WIFI6E motherboard features the AMD B850 chipset on Socket AM5, equipped with a 12+2+1 DRPS power design engineered to drive AMD Ryzen 9000, 8000, and 7000 series processors. Constructed in a standard 304.8 mm x 243.84 mm ATX form factor, it gives system builders a robust foundation equipped with PCIe 5.0 storage support, high-speed DDR5 memory architecture, and integrated Wi-Fi 6E networking.

Robust 12+2+1 DRPS power delivery for AMD Socket AM5

To deliver clean, consistent power to multi-core processors, the board utilises a 12+2+1 Duet Rail Power System (DRPS). Power is delivered via dual 8-pin 12V CPU connectors alongside the standard 24-pin ATX connector, ensuring stable voltage output under sustained processing loads. This power delivery setup supports the thermal and power requirements of AMD Ryzen 9000, 8000, and 7000 series CPUs during intensive workstation tasks and heavy multitasking.

High-bandwidth DDR5 memory support up to 8200+ MT/s

Equipped with four DDR5 DIMM slots operating in dual-channel mode, the PRO B850-S WIFI6E supports up to 256 GB of system memory. System memory speeds reach up to DDR5 8200+ (OC) MT/s, allowing users to pair high-frequency RAM with high-core-count processors for memory-intensive workloads like video rendering, large database compilation, and complex simulations.

Gen5 M.2 speed paired with flexible PCIe expansion

Storage performance is led by a high-speed PCIe 5.0 x4 M.2 slot, providing up to double the bandwidth of PCIe 4.0 for primary NVMe boot drives. A secondary PCIe 4.0 x4 M.2 slot and four SATA 6Gb/s ports expand storage capacity for secondary drives and mass storage arrays.

For expansion cards and graphics hardware, the board includes a primary PCIe 4.0 x16 slot, a secondary PCIe 4.0 x16 slot running in x4 mode, and a PCIe 3.0 x1 slot. Integrated RAID support gives options for data protection and speed across drive arrays:

• NVMe M.2 RAID: RAID 0 and RAID 1 support
• SATA RAID: RAID 0, RAID 1, and RAID 10 support

Fast 2.5Gb Ethernet, Wi-Fi 6E, and display connectivity

Networking capabilities combine high-bandwidth wired and wireless interfaces. Wired connections are handled by a Realtek RTL8125 2.5GbE LAN controller for low-latency local network file transfers. Wireless networking uses Wi-Fi 6E, accessing the dedicated 6GHz band alongside Bluetooth 5.3 for peripheral connectivity.

Display outputs and integrated audio components include:

Three-year manufacturer warranty coverage

The MSI PRO B850-S WIFI6E is backed by a 3-year warranty, covering components and manufacturing reliability for long-term production builds.