Motherboard GIGABYTE B550M DS3H R2, B550, Socket AM4, Micro ATX

The GIGABYTE B550M DS3H R2 is a Micro ATX motherboard based on the AMD B550 chipset, designed for Socket AM4 processors and supporting AMD Ryzen 5000 series CPUs. It offers a 5+3 phase VRM design, four DDR4 memory slots with up to 128 GB total capacity and overclocking support up to 4733 MHz (O.C.), one PCIe 4.0 x16 slot, one PCIe 3.0 x1 slot, dual M.2 slots (including at least one PCIe 4.0-capable M.2) and multiple SATA III ports for flexible storage configurations. Connectivity includes 1 GbE LAN and USB 3.2 Gen 1 ports, making this Micro ATX board suitable for compact high-performance desktop builds.

Advantages

The motherboard combines B550 chipset features with a compact Micro ATX form factor, providing PCIe 4.0 support for next-generation graphics and NVMe storage while maintaining multiple SATA and M.2 options. Its 5+3 phase VRM topology and four memory slots allow stable power delivery and up to 128 GB DDR4 memory capacity, supporting higher-frequency modules for improved system responsiveness. Onboard 1 GbE LAN and USB 3.2 Gen 1 ensure standard wired networking and fast peripheral connectivity.

Suitable for

• Compact gaming PCs using AMD Ryzen 5000 series processors
• Home or office desktops that require multiple storage devices (M.2 + SATA)
• Budget-friendly content-creation systems with up to 128 GB DDR4 RAM
• Upgrades from older AM4 platforms to PCIe 4.0-capable storage and GPUs

Key specifications

• Form factor: Micro ATX
• Chipset: AMD B550
• Socket: AM4 (supports AMD Ryzen 5000 series CPUs)
• Power design: 5+3 phase VRM
• Memory: 4 × DDR4 slots, up to 128 GB, up to 4733 MHz (O.C.)
• Expansion slots: 1 × PCIe 4.0 x16, 1 × PCIe 3.0 x1
• Storage: 1× (or more) M.2 slot with PCIe 4.0 support, additional M.2 and SATA III ports
• LAN: 1 GbE
• USB: USB 3.2 Gen 1 ports on rear I/O
• Weight: 0.87 kg

How to use

Install the motherboard into a compatible Micro ATX case, fit an AM4-compatible CPU and apply the appropriate CPU cooler. Populate DDR4 modules across the four DIMM slots according to the motherboard manual for dual-channel operation, and install a graphics card into the PCIe 4.0 x16 slot if required. Connect M.2 SSD(s) and SATA drives for storage, and attach front-panel headers, PSU connectors and rear I/O devices. Configure BIOS/UEFI settings to recognize installed memory and storage, enable XMP/DOCP or manual frequency settings for DDR4 overclocking, and update the firmware if recommended.

Recommendations

For stable performance, use a quality power supply, apply proper case airflow, and consult the motherboard manual when installing high-frequency memory or multiple M.2 drives. Update drivers and BIOS to the latest versions from GIGABYTE to ensure full compatibility with Ryzen 5000 series processors and PCIe 4.0 devices.