With years of experience, MSI is no stranger to building high-performance motherboards. Out R&D and engineering teams have reviewed countless designs, evaluated a wide selection of high quality components, and developed products for reliability even under extreme conditions. With more cores’ processors, thermal and power design is more important to make sure the temperature keeps lower. MSI extended PWM heatsink and enhanced circuit design ensures even high-end Intel CPU to run in full speed with MSI motherboards.

CPU
  • Supports 12th Gen Intel Core Processors, Pentium Gold and Celeron Processors
  • Processor socket LGA1700
Chipset
  • Intel B660 Express Chipset
Memory
  • 4x DDR4 memory slots, support up to 128GB
  • Supports 1R 2133/ 2666/ 2933/ 3200 MHz (by JEDEC & POR)
  • Max overclocking frequency:
    1DPC 1R Max speed up to 4800+ MHz
    1DPC 2R Max speed up to 4000+ MHz
    2DPC 1R Max speed up to 4000+ MHz
    2DPC 2R Max speed up to 3600+ MHz
  • Supports Dual-Channel mode
  • Supports non-ECC, un-buffered memory
  • Supports Intel Extreme Memory Profile (XMP)
Onboard Graphics

  • 1x HDMI 2.1 with HDR port, supports a maximum resolution of 4K 60Hz
  • 1x DisplayPort 1.4 port with HBR3, supports a maximum resolution of 4K 60Hz

Available only on processors featuring integrated graphics.

Graphics specifications may vary depending on the CPU installed.

Audio

Realtek ALC1200 Codec

  • 7.1-Channel High Definition Audio
  • Supports S/PDIF output
LAN
  • 1 x Realtek 8125BG 2.5Gbps LAN controller
Wireless Communication Module

Intel Wi-Fi 6

  • The Wireless module is pre-installed in the M.2 (Key-E) slot
  • Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ up to 2.4Gbps
  • Supports 802.11 a/ b/ g/ n/ ac/ ax
  • Supports Bluetooth 5.2
Expansion Slots

2x PCIe x16 slots

  • PCI_E1 slot (From CPU)
    Supports PCIe 4.0 x16
  • PCI_E3 slot (From B660 Chipset)
    Supports PCIe 3.0 x4

1x PCIe 3.0 x1 slot

Multi-Graphics Technology
  • Supports AMD CrossFire Technology
Storage Interface

4x SATA 6Gb/s ports (SATA5~8, from B660 Chipset)

  • SATA8 will be unavailable when installing M.2 SATA SSD in the M2_2 slot.

2x SATA 6Gb/s ports (SATA_A & SATA_B, from ASMedia ASM1061)

2x M.2 slots (Key M)

  • M2_1 slot (From CPU)
    Supports PCIe 4.0 x4
    Supports 2242/ 2260/ 2280 storage devices
  • M2_2 slot (From B660 Chipset)
    SATA8 will be unavailable when installing M.2 SATA SSD in the M2_2 slot.
    Supports PCIe 4.0 x4
    Supports SATA 6Gb/s
    Supports 2242/ 2260/ 2280 storage devices
    Supports Intel Optane Memory
USB

Intel B660 Chipset

  • 1x USB 3.2 Gen2x2 20Gbps Type-C port on the back panel
  • 1x USB 3.2 Gen 2 10Gbps Type-C port available through the internal connector
  • 2x USB 3.2 Gen 1 5Gbps ports available through the internal connector
  • 4x USB 2.0 ports on the back panel

USB Hub-GL3590

  • 3x USB 3.2 Gen 2 10Gbps Type-A ports on the back panel

USB Hub-GL850G

  • 4x USB 2.0 ports available through internal connectors
Internal I/O Connectors
  • 1x 24-pin ATX main power connector
  • 2x 8-pin ATX 12V power connectors
  • 6x SATA 6Gb/s connectors
  • 2x M.2 slots (M-Key)
  • 1x USB 3.2 Gen 2 10Gbps Type-C connector
  • 1x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports)
  • 2x USB 2.0 Type-A connectors (supports additional 4 USB 2.0 ports)
  • 1x 4-pin CPU fan connector
  • 1x 4-pin water-pump fan connector
  • 2x 4-pin system fan connectors
  • 1x Front panel audio connector
  • 2x System panel connectors
  • 1x Chassis Intrusion connector
  • 1x Clear CMOS jumper
  • 1x TPM module connector
  • 1x TBT connector (supports RTD3)
  • 1x Tuning Controller connector
Back Panel Connectors
  • 4 x USB 2.0 Port
  • 1 x DisplayPort 1.4
  • 3 x USB 3.2 Gen 2 10Gbps Type-A
  • 1 x 2.5G LAN Port
  • 2 x Wi-Fi / Bluetooth Antenna
  • 5 x HD Audio Connectors
  • 1 x HDMI 2.1 Port
  • 1 x USB 3.2 Gen 2x2 20Gbps Type-C
  • 1 x Optical S/PDIF OUT
I/O Controller
  • Not Specified
H/W Monitoring
  • Voltage detection
  • Temperature detection
  • Fan speed detection
  • Overheating warning
  • Fan fail warning
  • Fan speed control
    * Whether the fan speed control function is supported will depend on the fan you install.
BIOS
  • Not Specified
Unique Features
  • 4 x EZ Debug LED
  • 1 x 4-pin RGB LED connector
  • 2 x 3-pin RAINBOW LED connectors
Bundled Software
  • Driver Disc
Operating System
  • Support for Windows 10/11 64-bit
Form Factor
  • Micro ATX Form Factor, 24.4cm x 24.4cm

Manufacturer
Manufacturer's WebsiteLink *
Product WebsiteLink *
Warranty Information
Warranty Duration3 Years
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MSI MAG B660M MORTAR WIFI DDR4, Intel B660 Chipset, LGA1700, DDR4, Micro ATX Desktop Motherboard

  • Brand: MSI
  • Product Code: B660M MORTAR WIFI DDR4
  • Availability: In Stock
  • EFT: R3,959

  • Credit Card: R4,098