GIGABYTE B660M Gaming X AX DDR4 Intel Motherboard

The GIGABYTE B660M Gaming X AX DDR4 is a Micro ATX motherboard built on Intel's B660 Express Chipset and designed for 12th Generation Intel Core, Pentium Gold, and Celeron processors installed in the LGA1700 socket. At 24.4 cm × 24.4 cm, it fits standard Micro ATX cases and delivers a capable feature set for gaming and productivity builds without requiring a full-size chassis. Power delivery is handled by an 8+1+1 phase Hybrid Digital VRM design with DrMOS components, paired with fully covered VRM heatsinks to help keep voltage regulation stable under sustained CPU loads. Four DDR4 DIMM slots support dual-channel Non-ECC Unbuffered memory with a maximum capacity of 128 GB, making this board suitable for memory-intensive workloads alongside gaming. Storage options are generous for the form factor. Two M.2 slots both operate at PCIe 4.0 x4 speeds with Thermal Guard covers, and four SATA 6Gb/s connectors round out the storage connectivity. RAID modes 0, 1, 5, and 10 are supported on the SATA ports. For expansion, the board carries one PCIe x16 slot running at full x16 bandwidth for a discrete GPU and a second PCIe x16 physical slot running at x4 for additional cards. Network connectivity includes a 2.5GbE LAN chip capable of 2.5 Gbps, 1 Gbps, and 100 Mbps operation, plus integrated WiFi 6 (802.11ax) with a 2T2R antenna configuration and Bluetooth 5. For USB, the rear panel provides USB 3.2 Gen 1 ports alongside USB 2.0 ports, while a front-panel USB 3.2 Gen 1 Type-C header is included on board. Display output is available via one HDMI 2.1 port and one DisplayPort connector on the rear I/O, relevant when using a processor with integrated graphics. Audio is managed by a Realtek codec supporting 2/4/5.1/7.1-channel output through three rear audio jacks with Audio Noise Guard circuitry and high-quality audio capacitors. RGB FUSION 2.0 provides addressable LED and standard RGB strip header support, and Smart Fan 6 controls multiple fan headers with hybrid fan operation and FAN STOP functionality. Q-Flash Plus allows BIOS updates from a USB drive without a CPU, memory, or GPU installed. Verified Specifications: • Chipset: Intel B660 Express • Socket: LGA1700 • CPU Support: 12th Gen Intel Core, Pentium Gold, Celeron • Memory: 4 × DDR4 DIMM, Dual Channel, Non-ECC Unbuffered, up to 128 GB • M.2 Slots: 2 × PCIe 4.0 x4 with Thermal Guard • SATA: 4 × SATA 6Gb/s; RAID 0/1/5/10 • PCIe: 1 × x16 (x16), 1 × x16 physical (x4 electrical) • LAN: 2.5GbE (2.5 Gbps / 1 Gbps / 100 Mbps) • Wireless: WiFi 6 802.11ax 2T2R, Bluetooth 5 • Video Out: 1 × HDMI 2.1, 1 × DisplayPort • USB (Rear): 3 × USB 3.2 Gen 1, 5 × USB 2.0/1.1 • Audio: Realtek codec, up to 7.1-channel, 3 rear jacks • Form Factor: Micro ATX, 24.4 cm × 24.4 cm