MSI PRO B550M-B Motherboard AMD AM4 Micro-ATX

The MSI PRO B550M-B is a reliable and affordable motherboard designed for AMD Ryzen processors. Built on the AMD B550 chipset with an AM4 socket, it supports the latest Ryzen 5000 series CPUs and offers a solid foundation for business or home office PCs. The micro-ATX form factor fits compact cases while providing essential features for everyday computing.

Advantages

Stable performance with DDR4 memory support up to 4400 MHz (OC), dual-channel architecture, and a robust power design. The board includes one PCIe 4.0 x16 slot for high-speed graphics cards, two PCIe 3.0 x1 slots, and one M.2 slot with PCIe 4.0/3.0 x4 and SATA support for fast storage. Four SATA 6Gb/s ports provide ample connectivity for drives. Realtek ALC897 audio delivers 7.1-channel HD sound, and Realtek RTL8111H Gigabit LAN ensures reliable networking.

Suitable for

• Office and productivity builds
• Home theater PCs (HTPC)
• Budget to mid-range gaming systems
• Workstations for everyday tasks

Key specifications

• CPU Socket: AMD AM4
• Chipset: AMD B550
• Form Factor: Micro-ATX
• Memory: 2x DDR4 DIMM, up to 64GB, max speed 4400 MHz (OC)
• Expansion Slots: 1x PCIe 4.0/3.0 x16, 2x PCIe 3.0 x1
• Storage: 1x M.2 (PCIe 4.0/3.0 x4, SATA), 4x SATA 6Gb/s
• Rear I/O: 4x USB 3.2 Gen 1 Type-A, 2x USB 2.0 Type-A, 1x HDMI 2.1, 1x D-Sub (VGA)
• Audio: Realtek ALC897, 7.1-Channel HD Audio
• LAN: Realtek RTL8111H Gigabit Ethernet
• Power: 1x 24-pin ATX, 1x 8-pin ATX 12V

Recommendations

For a balanced office or home PC, pair this motherboard with an AMD Ryzen 5 5600G or Ryzen 7 5700G processor and 16GB of DDR4-3200 memory. Add an M.2 NVMe SSD for fast boot times and a SATA HDD for bulk storage. The integrated graphics on G-series CPUs are sufficient for everyday tasks and light gaming.