GIGABYTE B660M DS3H AX Wifi DDR4 Intel Motherboard

The Gigabyte B660M DS3H AX DDR4 is a Micro ATX motherboard built on the Intel B660 Express Chipset and designed specifically for 12th Generation Intel Core processors using the LGA1700 socket. Measuring 24.4 cm x 24.4 cm, it fits neatly into compact mid-tower and mini-tower cases while delivering a well-rounded feature set for gaming builds, home workstations, and enthusiast systems alike. Memory flexibility is a key strength. The board provides four DDR4 DIMM slots in a dual-channel configuration, supporting up to 128 GB of system memory (32 GB per DIMM). Standard speeds begin at DDR4-2133 and can reach DDR4-5333 via XMP overclocking profiles, giving builders room to tune performance without switching platforms. Storage is handled through two M.2 connectors — one routed through the CPU (M2A_CPU) and one through the chipset (M2P_SB) — both supporting PCIe 4.0 x4 NVMe SSDs in 2260 and 2280 form factors. Both slots feature Gigabyte’s M.2 Thermal Guard heatsinks to manage heat from high-speed drives. An additional four SATA 6 Gb/s ports are available for traditional drives, with support for RAID 0, 1, 5, and 10. Networking capabilities include a Realtek 2.5 GbE LAN chip (supporting 2.5 Gbps, 1 Gbps, and 100 Mbps) and an Intel Wi-Fi 6 (802.11ax) module with Bluetooth 5.2, a 2T2R antenna configuration, and support for the 160 MHz channel width for theoretical wireless speeds up to 2.4 Gbps. Note: the specific wireless chip varies by PCB revision — AX201 (rev. 1.0), AX200 (rev. 1.1), or AX211 with Wi-Fi 6E tri-band support (rev. 1.2). The expansion layout includes one PCIe 4.0 x16 slot for a discrete GPU and two PCIe 3.0 x1 slots for additional cards. Rear connectivity spans one USB 3.2 Gen 2 Type-C port, three USB 3.2 Gen 1 Type-A ports, two USB 2.0 ports, one HDMI 2.1 output, two DisplayPort 1.2 outputs, an RJ-45 Ethernet port, three audio jacks, a PS/2 port, and two SMA antenna connectors. The power delivery section uses a 6+2+1 phase hybrid digital VRM with a MOS heatsink to maintain stability under sustained CPU loads. Smart Fan 6 technology manages up to four fan headers (PWM/DC) with per-header curve control based on individual temperature sensors. RGB Fusion 2.0 supports both addressable (ARGB) and standard RGB LED strip headers for lighting customisation. Q-Flash Plus allows BIOS updates from a USB drive without installing a CPU, memory, or GPU — a practical feature during a new platform build. The AMI UEFI BIOS supports ACPI 5.0, DMI 2.7, and SM BIOS 2.7. Verified Specifications: • Form Factor: Micro ATX, 24.4 cm x 24.4 cm • Socket: LGA1700 (12th Gen Intel Core i5/i7/i9) • Chipset: Intel B660 Express • Memory: 4x DDR4 DIMM, dual-channel, up to 128 GB, DDR4-2133 to DDR4-5333 (XMP O.C.) • Storage: 2x M.2 PCIe 4.0 x4 (with Thermal Guard) + 4x SATA 6 Gb/s, RAID 0/1/5/10 • GPU Slot: 1x PCIe 4.0 x16 • LAN: Realtek 2.5 GbE • Wireless: Intel Wi-Fi 6/6E (rev-dependent), Bluetooth 5.2, 2T2R, 160 MHz • Audio: Realtek HD Audio CODEC, 2/4/5.1/7.1-channel • Rear USB: 1x USB 3.2 Gen 2 Type-C, 3x USB 3.2 Gen 1, 2x USB 2.0 • Display Outputs: 1x HDMI 2.1 (4096×2160@60 Hz), 2x DisplayPort 1.2 (4096×2304@60 Hz) • BIOS: AMI UEFI, Q-Flash Plus • OS Support: Windows 11 64-bit, Windows 10 64-bit • Warranty: 3 Years