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Green Micro ATX motherboard with silver heatsinks and black PCB

MSI

MSI PRO B660M-G DDR4 Intel motherboard

SKU CH-ZGW8-38JVC

Micro-ATX board for 12th Gen Intel LGA 1700 CPUs with dual-channel DDR4 up to 64 GB, PCIe 4.0 x16, 2.5 Gb LAN and 7.1 audio

  • ProcessorSupports 12th Gen Intel Core™ Processors, Pentium Gold and C
  • ChipsetIntel B660
  • CPU socketLGA 1700
  • Supported memorySupports dual-channel DDR4 4600 (OC)/4400 (OC)/4266 (OC)/420
  • Max supported RAM64 GB
  • PCI slots1x PCIe 4.0 x16 slot (from CPU) 1x PCIe 3.0 x1 slot (from B6
  • Supports 12th Gen Intel Core on LGA 1700 socket
  • Dual-channel DDR4 up to 4600 MHz overclocked
  • 5 Gbps LAN via Realtek RTL8125BG controller
  • 1-channel audio with Realtek ALC897 codec
  • Micro ATX form factor with PCIe 4.0 x16 slot

Socket and chipset

The MSI PRO B660M-G DDR4 is an Intel B660 motherboard built for LGA 1700 processors including 12th Gen Core, Pentium Gold and Celeron models. Its Micro ATX form factor suits compact workstations and mainstream gaming builds that need a modern platform without a full-size board.

Memory and expansion limits

Verify that your CPU cooler clears the board layout and that your power supply provides the required ATX and CPU connectors for a B660 platform. The board supports dual-channel DDR4 up to 64GB across speeds from 2133 to 4600 MHz, with one PCIe 4.0 x16 slot and one PCIe 3.0 x1 slot available for graphics and add-in cards.

Sustained operation

A Realtek RTL8125BG 2.5Gbps LAN controller and Realtek ALC897 7.1-channel audio handle continuous network and sound workloads. Six USB 3.2 Gen 1 ports and four USB 2.0 ports on the rear panel plus internal headers keep peripherals connected during long sessions, while the GL850G hub manages additional USB 2.0 lanes without throttling.

How it compares

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

Price $125.99
Pricier than about 63% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameMSI
Product lineMSI PRO B660M-G DDR4
Model nameMSI PRO B660M-G DDR4
Processor
ProcessorSupports 12th Gen Intel Core™ Processors, Pentium Gold and Celeron Processors
Processor socket LGA1700
CPU socketLGA 1700
ChipsetIntel B660
Memory
Supported memorySupports dual-channel DDR4 4600 (OC)/4400 (OC)/4266 (OC)/4200 (OC)/4000 (OC)/3800 (OC)/3733 (OC)/3600 (OC)/3466 (OC)/3400 (OC)/3333 (OC)/3200 (OC)/3200 (JEDEC)/2933 (JEDEC)/2666 (JEDEC)/2400 (JEDEC)/2133 (JEDEC) MHz memory
Max supported RAM64 GB
Storage
SATA and RAID support2XM.2 interface, 4xSATA III interface
Audio & video
Audio chipRealtek ALC897 Codec
7.1-Channel High Definition Audio
Connectivity
Ethernet controller1x Realtek RTL8125BG 2.5 Gbit/s LAN controller
Ports & slots
PCI slots1x PCIe 4.0 x16 slot (from CPU)
1x PCIe 3.0 x1 slot (from B660 chipset)

Questions about this item

Does the box contain everything needed to install the board or must anything be bought separately?

The package includes the motherboard, a CMOS battery, one SATA cable and the rear I/O shield. No CPU cooler, mounting screws or additional cables are supplied.

Should I choose 3200 MHz JEDEC modules or faster overclocked DDR4 for this B660 board?

The board runs DDR4 at 3200 MHz JEDEC by default; speeds up to 4600 MHz are only reached through manual overclocking in the BIOS.

What does the 2.5 Gbps LAN controller deliver in everyday use compared with standard gigabit?

The Realtek RTL8125BG provides up to 2.5 Gbps wired throughput, so large file transfers and low-latency gaming see a measurable boost over 1 GbE when the router and cabling support it.

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