GIGABYTE B660M Gaming AC DDR4 Intel Motherboard

The Gigabyte B660M Gaming AC DDR4 is a Micro ATX motherboard built on the Intel B660 Express chipset and designed around the LGA1700 socket, with native support for 12th Generation Intel Core, Pentium Gold, and Celeron processors. Measuring 24.4 cm x 22.5 cm, it fits standard Micro ATX chassis while delivering a feature set typically associated with larger boards. Power delivery is handled by a 6+2+1 phase hybrid digital VRM using low-RDS MOSFETs paired with solid capacitors to improve transient response, all topped by a dedicated MOS heatsink. The 8-pin ATX 12V CPU power connector ensures stable power for demanding workloads. Memory support spans two DDR4 DIMM slots capable of holding up to 64 GB (32 GB per slot) in dual-channel configuration. Native speeds run from DDR4-2133 up to DDR4-3200, with XMP and overclocked profiles extending support to DDR4-5333 (O.C.). Storage flexibility is a highlight: two M.2 connectors—one CPU-direct and one chipset-connected—both running PCIe 4.0 x4, supplement four SATA 6 Gb/s ports with RAID 0/1/5/10 support. Networking combines a Realtek 2.5GbE LAN chip (supporting 2.5 Gbps, 1 Gbps, and 100 Mbps) with an Intel Wi-Fi AC 3168 module offering dual-band 802.11a/b/g/n/ac on 2.4 GHz and 5 GHz and Bluetooth 4.2, connected via two SMA antenna connectors in a 1T1R configuration. Connectivity on the rear I/O includes three USB 3.2 Gen 1 Type-A ports, one USB 3.2 Gen 1 Type-C port, two USB 2.0 ports, a PS/2 combo port, D-Sub, HDMI (up to 4096×2160 @ 60 Hz with HDMI 2.1), DisplayPort (up to 4096×2304 @ 60 Hz via DisplayPort 1.2), and three audio jacks backed by a Realtek HD Audio CODEC supporting up to 7.1-channel output. Up to three displays can be driven simultaneously using integrated Intel graphics. RGB Fusion 2.0 provides one addressable LED header and one standard RGB LED header for lighting customisation. Smart Fan 6 covers one CPU fan header and three system fan headers, all capable of delivering up to 2A/12V (24W) and supporting FAN STOP. Q-Flash Plus allows BIOS updates via USB without installing the CPU, memory, or graphics card. The AMI UEFI BIOS occupies a 256 Mbit flash chip and supports ACPI 5.0, SM BIOS 2.7, and PnP 1.0a. A TPM header (for GC-TPM2.0 SPI modules) is present for security compliance. The board ships with a 3-year warranty. Verifiable Specifications: – Form Factor: Micro ATX, 24.4 cm × 22.5 cm – Socket: LGA1700 – Chipset: Intel B660 Express – Memory: 2× DDR4 DIMM, up to 64 GB, DDR4-2133 to DDR4-3200 native / up to DDR4-5333 O.C., XMP supported – M.2: 2× M.2 (PCIe 4.0 x4, type 2260/2280) – SATA: 4× SATA 6 Gb/s (RAID 0/1/5/10) – LAN: Realtek 2.5GbE (2.5 Gbps/1 Gbps/100 Mbps) – Wi-Fi: Intel Wi-Fi AC 3168, 802.11a/b/g/n/ac, dual-band, up to 433 Mbps – Bluetooth: 4.2 – PCIe Slots: 1× PCIe 4.0 x16; 1× PCIe 3.0 x1 – Rear USB: 1× USB 3.2 Gen 1 Type-C; 3× USB 3.2 Gen 1 Type-A; 2× USB 2.0 – Video Out: D-Sub, HDMI 2.1 (4K@60Hz), DisplayPort 1.2 – Audio: Realtek HD Audio CODEC, up to 7.1-channel – VRM: 6+2+1 phase hybrid digital with MOS heatsink – BIOS: AMI UEFI, 256 Mbit flash, Q-Flash Plus – OS: Windows 11 64-bit, Windows 10 64-bit – Warranty: 3 years