MSI B840M GAMING PLUS WIFI6E – AM5 Micro‑ATX DDR5 Motherboard

Description

Overview

The MSI B840M GAMING PLUS WIFI6E is a Micro‑ATX (243.84 x 243.84 mm) AM5 motherboard built around the AMD B840 chipset. It supports AMD Ryzen 7000, 8000 and 9000 series desktop processors and modern DDR5 memory, offering a compact platform with PCIe 4.0 connectivity, dual M.2 Gen4 storage and integrated Wi‑Fi 6E for high‑speed wireless networking.

Key features

• Socket: AMD AM5; compatible with Ryzen™ 7000 / 8000 / 9000 series desktop processors.
• Memory: 4 x DDR5 UDIMM slots, up to 256GB; supported JEDEC and OC frequencies (DDR5 8000+ MT/s listed as OC capability).
• Storage: 2 x M.2 Gen4 x4 slots (CPU-sourced) and 4 x SATA 6Gb/s ports.
• Expansion: 1 x PCIe 4.0 x16 (CPU), 1 x PCIe 3.0 x4 (chipset).
• Networking: Realtek 8125D 2.5G LAN and pre‑installed Wi‑Fi 6E module (supports up to 6GHz where permitted) with Bluetooth 5.3.
• Rear I/O: USB 10Gbps Type‑A & Type‑C, multiple USB 5Gbps ports, HDMI 2.1 (requires a CPU with integrated graphics), Clear CMOS and Flash BIOS buttons.
• Audio: Realtek ALC897 7.1‑channel codec with MSI Audio Boost.

Who it’s for

This board suits gamers and builders who want a compact AM5 platform with modern connectivity — particularly those who need Wi‑Fi 6E, 2.5G LAN and fast NVMe storage in an mATX form factor. It is also useful for small‑form‑factor workstations that require current generation CPU support and DDR5 memory.