MSI PRO B840M-P WIFI6E mATX AM5 Motherboard

Description

Overview

The MSI PRO B840M-P WIFI6E is a compact micro‑ATX motherboard for AMD Socket AM5 systems. Designed around the AMD B840 chipset, it supports Ryzen™ 7000, 8000 and 9000 series desktop processors and modern DDR5 memory while offering PCIe Gen4 storage, integrated Wi‑Fi 6E and a 2.5G LAN controller.

Key features

• Chipset: AMD B840; CPU socket: AM5 — compatible with Ryzen 7000/8000/9000 series processors.
• Memory: 4× DDR5 UDIMM slots, dual‑channel, up to 256GB; supported speeds up to DDR5‑8000+ (OC) and JEDEC 5600–4800.
• Expansion: 1× PCIe 4.0 x16 (from CPU) and 1× PCIe 3.0 x1 (from chipset).
• Storage: 2× M.2 Gen4 x4 slots (2280/2260) plus 4× SATA 6Gb/s ports; M.2 slots support NVMe Gen4 x4.
• Networking and wireless: Realtek 8125D 2.5G LAN and pre‑installed Wi‑Fi 6E module (supports 2.4/5/6GHz where regulations permit) with Bluetooth 5.3.
• Rear I/O highlights: HDMI 2.1 (4K@60, with CPU iGPU), USB 10Gbps Type‑A & Type‑C, multiple USB 5Gbps and USB 2.0 ports, Clear CMOS and Flash BIOS buttons, 2.5G LAN and audio connectors.
• Audio: Realtek ALC897, 7.1‑channel HD audio.
• Form factor and size: micro‑ATX PCB, 243.84 × 243.84 mm.

Who it suits

This board is suitable for compact business, home‑office or mainstream gaming systems that need AM5 CPU support, high‑speed NVMe storage and modern connectivity (Wi‑Fi 6E and 2.5G LAN) without a full ATX footprint. It provides a balance of features — DDR5 support, PCIe Gen4 lanes from the CPU and dual Gen4 M.2 — for users upgrading to current Ryzen platforms.