Gigabyte B550M DS3H R2 M-ATX Motherboard

The GIGABYTE B550M DS3H R2 is a Micro-ATX motherboard built on AMD's B550 chipset, designed for the AM4 socket platform. It supports AMD Ryzen 5000, 4000, and 3000 Series processors, making it a capable foundation for a wide range of performance builds — from everyday productivity rigs to mid-range gaming systems. At its core, the board uses a 5+3 phase pure digital VRM design with Low RDS MOSFETs, which contributes to stable and efficient power delivery for the CPU. The dual-channel DDR4 memory subsystem accommodates four DIMMs and supports speeds of up to 4733 MHz (via XMP profiles), with a maximum capacity of 128 GB. Both ECC Un-buffered and non-ECC Un-buffered DIMM configurations are supported, offering flexibility across workstation and desktop use cases. Storage connectivity is a highlight of this board. Two M.2 Socket 3 connectors support both NVMe and SATA-mode SSDs, with the primary slot capable of PCIe 4.0 x4 speeds (when paired with a compatible Ryzen 5000 or 3000 Series CPU), enabling data transfer rates that make a meaningful difference in system responsiveness. Four SATA 6 Gb/s ports provide additional storage capacity for HDDs or SATA SSDs. AMD StoreMI technology is also supported, allowing users to combine an SSD and HDD into a single tiered volume to improve overall storage performance. Display output is handled by a rear-panel HDMI port and a DisplayPort, giving users dual-monitor capability via integrated graphics. Networking is served by Realtek Gigabit Ethernet with bandwidth management support. The rear I/O panel also includes four USB 3.2 Gen 1 ports, two USB 2.0/1.1 ports, and three audio jacks. Internally, the board exposes a USB Type-C header (USB 3.2 Gen 1), a USB 3.2 Gen 1 header, addressable RGB and standard RGB headers, and a Q-Flash Plus button for convenient BIOS updates without a CPU installed. The primary PCIe x16 slot (CPU-connected) supports PCIe 4.0 x16 mode with Ryzen 5000 and 3000 Series processors, and features GIGABYTE's reinforced UD (Ultra Durable) design intended to provide added mechanical support for heavier graphics cards. The chipset contributes an additional PCIe 3.0 x4 slot and a PCIe 3.0 x1 slot for expansion. VRM thermal management is addressed through GIGABYTE's VRM Thermal Armor, helping to maintain stable temperatures during sustained loads. A TPM header (2x6-pin, compatible with the GC-TPM2.0_S module) and a serial port header are also included for business and legacy connectivity needs. Verifiable Specifications: - Socket: AM4 - Chipset: AMD B550 - Form Factor: Micro-ATX - CPU Support: AMD Ryzen 5000 / 4000 / 3000 Series - Memory: 4 x DDR4 DIMM slots, Dual Channel, up to 128 GB, up to 4733 MHz (XMP) - Storage: 2 x M.2 (PCIe 4.0 x4 / PCIe 3.0 x2 / SATA), 4 x SATA 6 Gb/s - PCIe Slots: 1 x PCIe 4.0 x16 (CPU), 1 x PCIe 3.0 x4 (chipset), 1 x PCIe 3.0 x1 (chipset) - Display: 1 x HDMI, 1 x DisplayPort - Networking: Realtek GbE LAN - Rear USB: 4 x USB 3.2 Gen 1, 2 x USB 2.0/1.1 - Audio: 3 x 3.5 mm jacks - RGB: 2 x ARGB headers, 2 x RGB headers - Warranty: 3 Years