ASUS PRIME B550M-K WIFI AMD AM4 Micro-ATX Motherboard with Wi-Fi 5, DDR4, PCIe 4.0, HDMI, VGA

For system builders assembling a compact yet capable AMD Ryzen desktop, the ASUS PRIME B550M-K WIFI offers a solid foundation in the micro-ATX form factor. It pairs the AMD B550 chipset with essential connectivity, including integrated Wi-Fi 5 and Gigabit Ethernet, making it suitable for both home offices and small gaming rigs where wired networking isn't always convenient.

Key specifications

• AMD AM4 socket: Supports AMD Ryzen 5000, 5000 G, 4000 G, and 3000 series processors
• AMD B550 chipset: Enables PCIe 4.0 for the primary M.2 slot and graphics card
• Micro-ATX form factor: Fits compact cases without sacrificing expansion options
• Memory: 4 x DDR4 DIMM slots, up to 128 GB, overclocking support up to 4800 MHz
• Storage: 2 x M.2 slots (1 x PCIe 4.0/3.0 x4, 1 x PCIe 3.0 x4) and 4 x SATA 6 Gb/s ports
• Networking: Realtek Gigabit Ethernet and Wi-Fi 5 (802.11ac) with Bluetooth 4.2
• Rear USB: 2 x USB 3.2 Gen 2 Type-A, 4 x USB 3.2 Gen 1 Type-A
• Display outputs: HDMI 2.1 and D-Sub (VGA) for integrated graphics
• Audio: Realtek ALC887/897 codec with 7.1-channel support

Why choose it

The PRIME B550M-K WIFI delivers a balanced mix of modern features and affordability. Its PCIe 4.0 support on the main M.2 slot and x16 slot ensures fast storage and graphics performance, while the built-in Wi-Fi eliminates the need for a separate adapter. ASUS's proven build quality and BIOS design add reliability for first-time builders and experienced users alike.

Ideal use cases

• Compact home or office PCs requiring wireless connectivity
• Entry-level gaming systems with Ryzen 5000 series CPUs
• Media centers or productivity workstations in small form factor cases
• Upgrades for existing AM4 systems needing modern networking

Good to know

The board includes ASUS-exclusive features like DIGI+ VRM for stable power delivery and overvoltage protection. Note that the second M.2 slot operates at PCIe 3.0 x4 speed, and the Wi-Fi module supports 802.11ac (Wi-Fi 5) rather than the newer Wi-Fi 6. A BIOS update may be required for Ryzen 5000 G series processors depending on the manufacturing date.