ASRock B550M PRO4 AM4 AMD B550 Micro ATX AMD Motherboard

The ASRock B550M Pro4 is a feature-packed Micro ATX motherboard built for AMD AM4 Ryzen 5000, 4000 G-Series, and 3000 Series processors (BIOS update may be required for some models). It features a robust 8+2 phase DrMOS power design with 50A stages and enlarged heatsinks for stable performance and moderate overclocking.

Memory support includes four DDR4 DIMM slots for dual-channel configurations up to 128 GB and speeds reaching 4733+ MHz (OC) via A-XMP. Expansion offers one PCIe 4.0 x16 slot with steel reinforcement, one PCIe 3.0 x16 (x4 mode), one PCIe 3.0 x1 slot, one M.2 PCIe 4.0 x4 slot, one M.2 PCIe 3.0 x2/SATA3 slot, and four SATA 6Gb/s ports with RAID 0/1/5/10 support.



Connectivity includes Realtek RTL8111H Gigabit LAN, Realtek ALC1220 7.1-channel HD audio with Nahimic enhancements, HDMI, DisplayPort 1.4, USB 3.2 Gen1 Type-C (rear and front header), and two addressable RGB headers with Polychrome Sync. Additional conveniences such as a pre-installed I/O shield and BIOS FlashBack make the B550M Pro4 an excellent value choice for compact, high-performance Ryzen gaming and productivity systems.