Gigabyte B550M K Motherboard

The GIGABYTE B550M K is a Micro-ATX motherboard built on the AMD B550 chipset for the AM4 socket platform. It is designed to support AMD Ryzen 5000 Series, Ryzen 5000 G-Series, Ryzen 4000 G-Series, Ryzen 3000, and Ryzen 3000 G-Series processors, making it a versatile foundation for a wide range of AMD-based desktop builds. Memory support is thorough: four DDR4 DIMM slots accept up to 128 GB of system memory (32 GB per DIMM), with native speeds of 2133–3200 MHz and overclocked profiles reaching up to 4733 MHz (O.C.) via XMP. Dual-channel operation and ECC Unbuffered DIMM support (CPU-dependent) add flexibility for productivity and light workstation use. Storage is a highlight of this board. Two M.2 connectors are included: the first (M2A_CPU) supports PCIe 4.0 x4 or PCIe 3.0 x4 NVMe SSDs depending on the CPU installed, while the second (M2B_SB) supports PCIe 3.0 x2 NVMe SSDs via the chipset. Four SATA 6 Gb/s ports round out storage with support for RAID 0, RAID 1, and RAID 10 configurations. For expansion, the board provides one PCIe x16 slot (PCIe 4.0 x16 with Ryzen 5000/3000 Series, PCIe 3.0 x16 with G-Series APUs) and one PCIe 3.0 x1 slot from the chipset. Integrated graphics output is available through one DisplayPort 1.4 (up to 5120×2880 @ 60 Hz) and one HDMI 2.1 port (up to 4096×2160 @ 60 Hz), both with HDCP 2.3 and HDR support — useful when using Ryzen G-Series APUs. Connectivity on the rear panel includes four USB 3.2 Gen 1 ports, four USB 2.0/1.1 ports, one RJ-45 Gigabit LAN port (Realtek GbE), DisplayPort, HDMI, three audio jacks, and a PS/2 keyboard/mouse port. Internally, headers include one USB 3.2 Gen 1 header and one USB 2.0/1.1 header. Audio is handled by a Realtek HD Audio CODEC supporting up to 7.1-channel output. The board ships with GIGABYTE’s Smart Fan 5 system, which provides multiple temperature sensor inputs, hybrid fan headers, and FAN STOP functionality to silence fans at low loads. BIOS is AMI UEFI with Q-Flash support for easy firmware updates. A TPM header (2×6-pin, GC-TPM2.0_S module) is present for security module compatibility. Key Verified Specifications: – Socket: AMD AM4 – Chipset: AMD B550 – Form Factor: Micro-ATX (244 mm × 244 mm) – Memory: 4× DDR4 DIMM, max 128 GB, up to 4733 MHz (O.C.), dual-channel, XMP supported – PCIe: 1× PCIe 4.0/3.0 x16, 1× PCIe 3.0 x1 – Storage: 2× M.2 (PCIe 4.0/3.0 x4 + PCIe 3.0 x2), 4× SATA 6 Gb/s (RAID 0/1/10) – Video Output: 1× DisplayPort 1.4 (5120×2880@60 Hz), 1× HDMI 2.1 (4096×2160@60 Hz) – LAN: Realtek GbE (1 Gbps/100 Mbps/10 Mbps) – Audio: Realtek HD Audio, up to 7.1-channel – USB (rear): 4× USB 3.2 Gen 1, 4× USB 2.0/1.1 – BIOS: AMI UEFI, 128 Mbit flash, Q-Flash – OS Support: Windows 11 64-bit, Windows 10 64-bit – Warranty: 3 Years