Description
Overview
The ASUS PRIME B840M-A WIFI is a micro‑ATX AM5 motherboard designed for AMD Ryzen 7000, 8000 and 9000 series desktop processors. It focuses on balanced connectivity and storage flexibility with support for DDR5 memory, multiple M.2 drives and onboard Wi‑Fi 6E plus 2.5Gb Ethernet.
Key features
- Socket AM5 for AMD Ryzen™ 7000/8000/9000 series processors (check ASUS CPU support list for compatibility)
- 4 x DDR5 DIMM slots — dual channel, up to 192GB total, supports EXPO and ASUS AEMP; memory support up to 7600+ MT/s (OC)
- Three M.2 slots (two PCIe 4.0 x4-capable, one PCIe 3.0 x4 via chipset) plus 4 x SATA 6Gb/s ports
- Expansion: 1 x PCIe 4.0 x16 (x16 mode with supported CPUs) and two additional PCIe 3.0 x16 physical slots (electrically x1)
- Networking: 2.5Gb Ethernet (Realtek) and integrated 2×2 Wi‑Fi 6E with Bluetooth 5.3
- Rear I/O includes dual DisplayPort, HDMI 2.1, two USB 10Gbps Type‑A, one USB 5Gbps Type‑C, plus additional USB 2.0 ports; front USB 5Gbps Type‑C header supported
- Realtek 7.1 HD audio, BIOS FlashBack, pre-mounted I/O shield and ASUS 5X Protection III features
Who it’s for
This board suits compact ATX‑compatible systems where modern connectivity and fast storage are priorities — office or content‑creation rigs, compact workstations and general‑purpose gaming builds where a micro‑ATX form factor is required.
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