MSI B550M Pro-VDH DDR4 AMD Motherboard

The MSI B550M Pro-VDH is a Micro-ATX motherboard built on the AMD B550 chipset, designed to support AMD Ryzen 5000 Series, AMD Ryzen 4000 G-Series, and AMD Ryzen 3000 Series desktop processors (excluding Ryzen 5 3400G and Ryzen 3 3200G). Its compact 9.6 x 9.6 inch form factor makes it a practical choice for space-conscious builds without sacrificing feature breadth. Storage versatility is a standout trait of this board. Two M.2 slots (M-Key) are provided — the primary slot, routed from the AMD processor, supports PCIe 4.0/3.0 x4 and SATA 6Gb/s, while the secondary slot from the B550 chipset supports PCIe 3.0 x4. Both accommodate 2242, 2260, and 2280 form-factor drives. An M.2 Shield Frozr heatsink covers the primary slot to help maintain thermal stability under sustained workloads. Four additional SATA 6Gb/s ports round out the storage options, with RAID 0, 1, and 10 support for SATA devices and RAID 0 and 1 for NVMe storage. Memory support is extensive: four DDR4 DIMM slots accept up to 128 GB in dual-channel configuration. JEDEC speeds range from 1866 to 3200 MHz, while A-XMP profiles push supported kits to 4400+ MHz (1DPC 1R). The board supports both ECC and non-ECC unbuffered UDIMMs. Connectivity is well-rounded for its class. The back panel carries four USB 3.2 Gen 1 5Gbps Type-A ports (from the processor), two USB 2.0 Type-A ports, a USB 3.2 Gen 1 Type-C internal header, DisplayPort (up to 4096×2160 @ 60 Hz), HDMI (up to 4096×2160 @ 24 Hz), and a legacy VGA port for integrated-graphics use. Networking is handled by a Realtek 8111HN Gigabit LAN controller, and Wi-Fi antenna connectors are present on the rear I/O panel. Audio is powered by a Realtek ALC892 codec delivering 7.1-channel HD audio. For system management and longevity, the B550M Pro-VDH includes a dedicated 4-pin water-pump fan header (rated up to 3 A), three 4-pin system fan headers, EZ Debug LED indicators, a Flash BIOS Button that functions without a CPU or memory installed, Double ESD protection, and PCIe Steel Armor on the primary x16 slot. RGB enthusiasts will find two 4-pin RGB LED connectors and two 3-pin RAINBOW LED headers for Mystic Light Extension compatibility. Expansion is covered by one PCIe 4.0/3.0 x16 slot (specification dependent on processor) and two PCIe 3.0 x1 slots. The board ships with a 3-year manufacturer warranty. Key Verified Specifications: - Chipset: AMD B550 - Form Factor: Micro-ATX, 9.6 in. x 9.6 in. (24.4 cm x 24.4 cm) - CPU Support: AMD Ryzen 5000 / 4000 G-Series / 3000 Series (AM4 socket); not compatible with Ryzen 5 3400G or Ryzen 3 3200G - Memory: 4x DDR4 DIMM, dual-channel, up to 128 GB; JEDEC up to 3200 MHz; A-XMP up to 4400+ MHz - Storage: 2x M.2 (PCIe 4.0/3.0 x4 + PCIe 3.0 x4); 4x SATA 6Gb/s - Expansion: 1x PCIe x16, 2x PCIe 3.0 x1 - Display: VGA, DisplayPort, HDMI (requires APU/iGPU) - Audio: Realtek ALC892, 7.1-channel HD - LAN: Realtek 8111HN Gigabit - USB: 4x USB 3.2 Gen 1 Type-A (rear), 1x USB 3.2 Gen 1 Type-C (internal), 2x USB 2.0 Type-A (rear), plus internal headers - Warranty: 3 Years