Gigabyte B450M K DDR4 M-ATX Motherboard

The GIGABYTE B450M K is a Micro-ATX motherboard built on AMD's B450 chipset, designed to deliver reliable everyday and entry-level performance in a compact 23.3 cm × 19.8 cm footprint. It sits on the AMD Socket AM4 platform, making it compatible with a broad range of processors spanning AMD Ryzen 5000 Series, Ryzen 5000 G-Series, Ryzen 4000 G-Series, and first through third generation AMD Ryzen CPUs, as well as AMD Athlon processors with Radeon Vega Graphics. Memory flexibility is a highlight of this board. Two DDR4 DIMM slots support dual-channel operation with a combined ceiling of 64 GB (up to 32 GB per slot). Standard speeds run from 2133 MHz through 2933 MHz, with XMP overclocked profiles reaching up to DDR4-3600. The board also accepts ECC Unbuffered DIMMs operating in non-ECC mode, giving builders optional data-integrity headroom. Storage is handled by one PCIe 3.0 x4 M.2 socket (M key, type 2280) supporting both NVMe and SATA drives, complemented by four SATA 6 Gb/s ports with RAID 0, 1, and 10 support. Expansion is provided through one PCIe 3.0 x16 slot for a discrete graphics card and one PCIe 2.0 x1 slot for additional peripherals. For builders using an APU or iGPU-capable processor, the board exposes both a D-Sub output (up to 1920×1200 @ 60 Hz) and an HDMI 2.0 port (up to 4096×2160 @ 60 Hz with HDCP 2.2 and HDR support), sharing up to 16 GB of system memory. Connectivity on the rear panel includes four USB 3.2 Gen 1 Type-A ports, two USB 2.0 ports, Realtek Gigabit Ethernet (1 Gbps/100 Mbps/10 Mbps) with LAN Bandwidth Management software, three audio jacks driven by a Realtek HD Audio CODEC supporting up to 7.1-channel output, a PS/2 combo port, and the dual video outputs noted above. Internally, headers add two more USB 3.2 Gen 1 ports and four USB 2.0 ports, plus a TPM header (compatible with GC-TPM2.0_S module) and chassis intrusion detection. Thermal oversight is managed through GIGABYTE's Smart Fan 5 system with five temperature sensors and two Hybrid Fan Headers that allow both PWM and DC fan control. The AMI UEFI BIOS includes Q-Flash for hassle-free firmware updates without a CPU installed, while the GIGABYTE APP Center bundles @BIOS, EasyTune, Smart Backup, and System Information Viewer utilities. Anti-Sulfur Resistor design adds long-term component durability. The board carries a 3-year manufacturer warranty. Verified Specifications: • Chipset: AMD B450 • Socket: AM4 • Form Factor: Micro-ATX (23.3 cm × 19.8 cm) • Memory: 2 × DDR4 DIMM, dual-channel, up to 64 GB, DDR4-2133/2400/2667/2933 native; DDR4-3466/3600 OC via XMP • Storage: 1 × M.2 (PCIe 3.0 x4 / SATA, type 2280); 4 × SATA 6 Gb/s; RAID 0/1/10 • PCIe Slots: 1 × PCIe 3.0 x16; 1 × PCIe 2.0 x1 • Display Out: 1 × D-Sub (1920×1200 @ 60 Hz); 1 × HDMI 2.0 (4096×2160 @ 60 Hz, HDR, HDCP 2.2) • USB (rear): 4 × USB 3.2 Gen 1; 2 × USB 2.0 • USB (internal headers): 2 × USB 3.2 Gen 1; 4 × USB 2.0 • LAN: Realtek GbE (1 Gbps) • Audio: Realtek HD CODEC, 7.1-channel • Fan Headers: 2 × Hybrid (PWM/DC) • BIOS: AMI UEFI, 128 Mbit flash, Q-Flash support • OS Support: Windows 11 64-bit, Windows 10 64-bit • Warranty: 3 Years