The ASUS PRIME B550M-A is a micro-ATX motherboard built for AMD Ryzen processors. It supports Ryzen 5000/4000 G-Series/3000 Series CPUs via the AM4 socket. Moreover, it offers PCIe 4.0, dual M.2 slots, and 1 Gb Ethernet for ultrafast connectivity. Additionally, Aura Sync RGB headers let you customize lighting to match your build.

Features and Specifications

• CPU & Chipset

  • Socket AM4 for Ryzen 5000/5000 G/4000 G/3000 Series

  • AMD B550 chipset with PCIe 4.0 x16 slot

• Memory

  • 4× DDR4 DIMM slots, up to 128 GB

  • Support up to DDR4-4866 (O.C.)

• Storage

  • 2× M.2 slots (one PCIe 4.0 x4; one PCIe 3.0 x4/SATA)

  • 4× SATA 6 Gb/s ports, RAID 0/1/10 support

• Expansion

  • 1× PCIe 4.0 x16 (x16)

  • 1× PCIe 3.0 x16 (x4)

  • 2× PCIe 3.0 x1

• Networking & Audio

  • Realtek RTL8111H 1 Gb Ethernet

  • Realtek ALC887 7.1-channel HD audio with premium caps

• USB Connectivity

  • Rear: 2× USB 3.2 Gen 2 Type-A, 4× USB 3.2 Gen 1, 2× USB 2.0

  • Front headers: 1× USB 3.2 Gen 1, 2× USB 2.0

• Display Outputs

  • HDMI 2.1 (4K @ 60 Hz)

  • D-Sub, DVI-D

• Cooling & Power

  • VRM heatsinks, PCH heatsink, Fan Xpert 2+

  • 8-pin EATX 12 V + 24-pin ATX power connectors

• RGB & Software

  • 1× Addressable Gen 2 RGB header, 2× standard RGB headers

  • Armoury Crate, Aura Sync, AI Suite 3

• Form Factor & Extras

  • mATX (24.4 × 24.4 cm)

  • Includes I/O shield, SATA cables, M.2 screws

Conclusion

In short, the ASUS PRIME B550M-A combines future-ready features with robust build quality. It’s ideal for Ryzen-powered gaming rigs and AI-focused PCs, thanks to PCIe 4.0, dual M.2, and comprehensive cooling. Furthermore, Aura Sync and Armoury Crate streamline system tuning and lighting control.