GIGABYTE B550 Gaming X DDR4 AMD Motherboard

The Gigabyte B550 Gaming X DDR4 is an ATX-form-factor motherboard (30.5 cm × 24.4 cm) built on the AMD B550 chipset for Socket AM4, supporting 3rd Generation AMD Ryzen processors and 3rd Generation AMD Ryzen with Radeon Graphics processors. At the heart of its power delivery sits a 10+3 phase pure digital VRM solution using low RDS MOSFETs, designed to supply stable, precise power to the CPU under sustained gaming or productivity loads. Four DDR4 DIMM slots support dual-channel memory up to 128 GB (32 GB per DIMM), with standard speeds of DDR4 2133–3200 MHz and overclocked profiles reaching DDR4 4000(O.C.) on Ryzen 3rd Gen CPUs via XMP support. Storage flexibility is a strong point: the primary M.2 slot (M2A_CPU) connects directly to the CPU and supports PCIe 4.0 x4 NVMe drives with Ryzen 3rd Gen non-APU processors, while the second M.2 slot (M2B_SB) runs from the chipset at PCIe 3.0 x4. Both slots accept type 2242, 2260, 2280, and 22110 SSDs. Four SATA 6 Gb/s ports round out the storage options, with RAID 0, 1, and 10 support. Expansion options include one PCIe 4.0 x16 primary slot for the discrete GPU (CPU-connected, Ryzen 3rd Gen), one PCIe 3.0 x2 slot, and three PCIe 3.0 x1 slots from the chipset. For display output when using an APU, the rear panel provides a DVI-D port (up to 1920×1200 @ 60 Hz) and an HDMI 2.1 port (up to 4096×2160 @ 60 Hz) with HDCP 2.3 and HDR support. Connectivity on the rear I/O includes one USB 3.2 Gen 2 Type-A port (10 Gbps), three USB 3.2 Gen 1 ports, two USB 2.0/1.1 ports, a PS/2 keyboard/mouse port, an RJ-45 Gigabit LAN port (Realtek GbE), and three audio jacks. Onboard audio uses a Realtek ALC887 codec supporting up to 7.1-channel High Definition Audio. Networking is handled by a Realtek GbE chip with 1000/100 Mbps capability. The board supports RGB Fusion 2.0, with two addressable LED strip headers and two standard RGB LED strip headers for system lighting customisation. Fan control is comprehensive, with one CPU fan header, one water-cooling CPU fan header, and three system fan headers, all monitored by the hardware monitoring circuit for temperature, voltage, and fan-speed data. Q-Flash Plus allows BIOS updates without a CPU or RAM installed. The BIOS itself is a licensed AMI UEFI implementation on a 256 Mbit flash chip. AMD StoreMI technology is also supported, enabling users to combine an SSD and HDD into a single tiered storage volume. Verified Specifications: • Socket: AMD AM4 | Chipset: AMD B550 • Form Factor: ATX, 30.5 cm × 24.4 cm • Memory: 4 × DDR4 DIMM, up to 128 GB, dual-channel, DDR4 2133–3200 (up to 4000 O.C.) • M.2: 2 × M.2 (PCIe 4.0 x4 CPU + PCIe 3.0 x4 chipset), types 2242/2260/2280/22110 • SATA: 4 × SATA 6 Gb/s, RAID 0/1/10 • PCIe: 1 × PCIe 4.0 x16 (CPU), 1 × PCIe 3.0 x2, 3 × PCIe 3.0 x1 • USB: 1 × USB 3.2 Gen 2 (10 Gbps), 3 × USB 3.2 Gen 1, 6 × USB 2.0/1.1 • Display: DVI-D (1920×1200@60 Hz), HDMI 2.1 (4096×2160@60 Hz) • Audio: Realtek ALC887, HD Audio, 2/4/5.1/7.1-channel • LAN: Realtek GbE (1000/100 Mbps) • BIOS: AMI UEFI, 256 Mbit flash, Q-Flash Plus • Warranty: 3 years