Gigabyte B550M H ARGB M-ATX Motherboard

The Gigabyte B550M H ARGB is a Micro-ATX motherboard built on AMD's B550 chipset, designed for the AM4 socket. It supports AMD Ryzen 5000 Series, Ryzen 5000 G-Series, Ryzen 4000 G-Series, Ryzen 3000, and Ryzen 3000 G-Series processors, giving builders a broad choice of compatible CPUs across multiple generations. Memory is handled by two DDR4 DIMM slots operating in dual-channel configuration, with support for ECC unbuffered and non-ECC unbuffered modules and Extreme Memory Profile (XMP). Maximum supported memory capacity is 64 GB, with speeds reaching up to 5100 MT/s (subject to CPU and memory pairing). Storage and expansion are well covered for a compact board. A single PCIe Gen 4.0 x4 M.2 Socket 3 connector supports both NVMe PCIe 4.0/3.0 and SATA mode drives, delivering up to 64 Gb/s transfer speeds when paired with a compatible PCIe 4.0 NVMe SSD and a Ryzen 5000 Series (non-G) processor. Four SATA 6 Gb/s connectors are also onboard for additional storage devices. The primary PCIe x16 slot runs at PCIe 4.0 x16 with Ryzen 5000/3000 Series CPUs, or PCIe 3.0 x16 with G-Series APUs. A chipset-provided PCIe 3.0 x1 slot rounds out the expansion options. Connectivity on the rear I/O panel includes four USB 3.2 Gen 1 ports, two USB 2.0/1.1 ports, one PS/2 keyboard/mouse port, Gigabit Ethernet (RJ-45), and three audio jacks for 8-channel HD audio. Display outputs comprise one DisplayPort and one HDMI port, enabling multi-monitor configurations. A Q-Flash Plus button is also present on the rear panel, allowing BIOS updates without a CPU or memory installed. For system builders who value aesthetics and airflow management, the board features three addressable RGB Gen 2 (ARGB) headers and one standard RGB LED strip header, alongside Gigabyte's Smart Fan 6 system. Smart Fan 6 provides up to seven control points per fan curve, supports both Slope and Stair curve modes, and allows fans to stop completely below a defined temperature threshold. Each fan header supports PWM and DC modes plus water-cooling pumps, with up to 2 A (24 W) output and over-current protection. Audio quality is supported by high-end audio capacitors and a PCB-level audio noise guard that isolates analog audio circuitry from digital interference. Anti-sulfur resistor design is incorporated to improve long-term component reliability. Verified Specifications: - Form Factor: Micro-ATX - Socket: AMD AM4 - Chipset: AMD B550 - CPU Support: Ryzen 5000 / 5000 G / 4000 G / 3000 / 3000 G Series - Memory: 2 x DDR4 DIMM, Dual Channel, max 64 GB, up to 5100 MT/s (XMP), ECC/non-ECC unbuffered - Storage: 1 x PCIe 4.0 x4 M.2 (NVMe & SATA), 4 x SATA 6 Gb/s - PCIe Slots: 1 x PCIe x16 (CPU), 1 x PCIe 3.0 x1 (Chipset) - Rear USB: 4 x USB 3.2 Gen 1, 2 x USB 2.0/1.1 - Display: 1 x DisplayPort, 1 x HDMI - LAN: Gigabit Ethernet - Audio: 8-channel HD, 3 x rear audio jacks - ARGB Headers: 3 x Gen 2 addressable, 1 x standard RGB - BIOS: Q-Flash Plus - Warranty: 3 Years - Color: Black - GTIN: 889523056950