ASUS Prime B550M-A Motherboard

The ASUS Prime B550M-A is designed for gamers, creators and PC builders who want a compact but feature-rich platform for AMD Ryzen processors. With support for AM4-socket Ryzen 3000/4000/5000 series CPUs, PCIe 4.0 on the primary x16 slot and one M.2 slot, dual M.2 storage support, and Aura Sync RGB headers, it offers a robust foundation for a modern mid-range system. Whether you're building a gaming rig, working on creative projects or setting up a high-efficiency workstation, this board balances power and upgrade potential in micro-ATX form factor.

The Prime B550M-A includes an AM4 socket compatible with 3rd, 4th (G-Series) and 5th generation Ryzen processors, supports dual-channel DDR4 memory up to 128 GB, features PCIe 4.0 ×16 and a second PCIe slot for expansion. It offers dual M.2 slots (one supporting PCIe 4.0 x4 & SATA, the other PCIe 3.0 x4/SATA), four SATA 6 Gb/s ports, rear USB 3.2 Gen 2 ports for high-speed peripheral connectivity, Intel-Gigabit LAN, and onboard RGB headers with Aura Sync support for customised lighting integration.

Form Factor: Micro-ATX
Socket: AMD AM4
Chipset: AMD B550
Supported CPUs: AMD Ryzen 5000/4000 G-Series/3000 Series
Memory Support: 4 × DIMM slots, Up to 128 GB, DDR4 (OC up to ~4600 MHz+)
Expansion Slots: 1 × PCIe 4.0 ×16, 1 × PCIe 3.0 ×16 (x4 mode) or x1 slots as available
Storage Interfaces: 2 × M.2 slots (M Key), 4 × SATA 6 Gb/s ports
LAN: Realtek 1 Gb Ethernet
Rear I/O USB: Includes USB 3.2 Gen 2 Type-A, USB 3.2 Gen 1, USB 2.0 ports
RGB/Lighting: Aura Sync supported, Addressable Gen 2 RGB header
Form Factor Dimensions: Approx. 24.4 cm × 22.1 cm (depends region)

This motherboard requires a compatible AMD AM4 socket processor (check support list for specific CPU models) and a standard ATX power supply with 24-pin main connector and 8-pin CPU 12 V connector. To leverage memory speed, use dual-channel DDR4 modules and enable XMP/DOCP in BIOS. For full PCIe 4.0 performance use a Ryzen 3000/5000 series CPU and compatible graphics card or NVMe. It fits micro-ATX cases with standard mounting and supports standard CPU cooling solutions. Ensure BIOS is updated to support the latest Ryzen processors.