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Micro ATX motherboard, black PCB with silver heatsinks

GIGABYTE

GIGABYTE B660M GAMING AC DDR4 LGA 1700 Intel B660 12 13 14 Micro ATX Intel motherboard

SKU CH-WF81-26DTA

Micro ATX board for LGA 1700 CPUs with dual-channel DDR4, 2.5GbE LAN, Realtek 7.1 audio, two M.2 slots and PCIe 4.0 graphics support

  • CPU socketLGA 1700
  • ChipsetIntel B660
  • Form factorMicro ATX
  • Memory slot count2 × 288pin (DDR4)
  • Supported memorySupport dual-channel DDR4 3200/3000/2933/2666/2400/2133 MHz
  • Max supported RAM64 GB
  • Supports 12th, 13th and 14th Gen Intel CPUs via LGA 1700 socket
  • Dual-channel DDR4 memory up to 64 GB at 3200 MHz
  • Two M.2 slots and four SATA 6 Gb/s ports for storage expansion
  • Onboard Realtek 2.5 GbE LAN for fast wired networking
  • Integrated Realtek 7.1 channel audio for surround sound

Socket and generation match

This Micro ATX motherboard uses the LGA 1700 socket and the Intel B660 chipset. It accepts twelfth, thirteenth and fourteenth generation Intel Core, Pentium and Celeron processors. The board fits compact cases while keeping full desktop connectivity.

Memory capacity and speed

Two DDR4 DIMM slots support dual-channel memory up to 64 GB at 3200 MHz, with lower JEDEC speeds down to 2133 MHz also supported. This is the key figure that decides whether the board matches your memory kit.

Expansion and I/O layout

One PCI Express 4.0 x16 slot and one PCI Express x1 slot handle graphics and add-in cards. Two M.2 sockets and four SATA 6 Gb/s ports provide storage flexibility. Rear I/O includes USB 3.2 Gen 1 Type-C, three USB 3.2 Gen 1, two USB 2.0, Realtek 2.5 GbE LAN, Realtek 7.1 channel audio, VGA, HDMI and DisplayPort. Internal headers add two USB 3.2 Gen 1 and four USB 2.0 ports. Power delivery uses one 8-pin and one 24-pin connector.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $76.99
Cheaper than about 64% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameGIGABYTE
Product lineGAMING
Model nameB660M GAMING AC
Processor
CPU socketLGA 1700
ChipsetIntel B660
Memory
Memory slot count2 × 288pin (DDR4)
Supported memorySupport dual-channel DDR4 3200/3000/2933/2666/2400/2133 MHz memory
Max supported RAM64 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA 6Gb/s
M.2 slots2 x M.2
Audio & video
Audio chipAudio chip Integrated Realtek 7.1 channel audio chip
Connectivity
Ethernet controllerNetwork card chip Onboard Realtek 2.5GbE network card
Ports & slots
PCIe 4.0 x16 slots1 x PCI Express 4.0 x16
PCIe x1 slots1 x PCI Express x1
Rear panel portsUSB (backplane) 1×USB3.2 Gen1 Type-C interface
3×USB3.2 Gen1 interface
2×USB2.0/1.1 interface
USB (built-in) 2×USB3.2 Gen1 interface
4×USB2.0/1.1 interface
Video interface 1×VGA interface, 1×HDMI interface, 1×DisplayPort interface
Power interface One 8-pin, one 24-pin power interface
Other interfaces 1×PS/2 common interface for keyboard and mouse, 1×RJ45 network interface, 2×antenna interface, 3×audio interface
Size & build
Form factorMicro ATX
Width and length9.6 in × 8.1 in

Questions about this item

What does 64GB maximum memory mean for a DDR4 build on this board?

You can install up to two DDR4 DIMMs totalling 64GB running in dual-channel at speeds up to 3200MHz.

How fast is the 2.5GbE LAN and what cable does it need?

The Realtek 2.5GbE controller delivers up to 2.5Gb/s over standard Cat5e or better Ethernet cable.

Will a large CPU cooler fit the Micro ATX layout?

The board measures 9.6 by 8.1 inches with two DDR4 slots and one PCIe 4.0 x16 slot, so cooler clearance depends on your case and the cooler’s own dimensions.

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