MSI MAG B660M MORTAR DDR4 – Socket 1700

• Supports 12th Gen Intel^® Core™, Pentium^® Gold and Celeron^® processors ¹
• Processor socket LGA1700

1. Please go to msi.com to get the newest support status as new processors are released.

• 4x DDR4 memory slots, support up to 128GB¹
• Supports 1R 2133/ 2666/ 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)

1. Please refer to www.msi.com for more information on compatible memory.

• 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

• 1x HDMI 2.1 with HDR port, supports a maximum resolution of 4K 60Hz¹ / ²
• 1x DisplayPort 1.4 port with HBR3, supports a maximum resolution of 4K 60Hz¹ / ²

1. Available only on processors featuring integrated graphics.
2. Graphics specifications may vary depending on the CPU installed.

• Supports 2-Way AMD^® CrossFire™ Technology

• 4x SATA 6Gb/s ports (SATA5~8, from B660 Chipset)¹
• 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)¹
    • Supports PCIe 4.0 x4
    • Supports SATA 6Gb/s
    • Supports 2242/ 2260/ 2280 storage devices
    • Supports Intel^® Optane™ Memory

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

• Supports RAID 0, RAID 1, RAID 5 and RAID 10 for SATA storage devices¹

1. SATA_A & SATA_B do not support RAID function.

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

Realtek^® ALC1200 Codec

• 7.1-Channel High Definition Audio
• Supports S/PDIF output

• 1x Realtek^® 8125BG 2.5Gbps LAN controller

• 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

• 4x EZ Debug LED
• 1x 4-pin RGB LED connector
• 2x 3-pin RAINBOW LED connectors

• USB 2.0 Port
• DisplayPort 1.4
• USB 3.2 Gen 2 10Gbps Type-A
• 2.5G LAN Port
• HD Audio Connectors
• HDMI 2.1 Port
• USB 3.2 Gen 2×2 20Gbps Type-C
• Optical S/PDIF OUT

• Micro-ATX Form Factor
• 9.6 in. x 9.6 in. (24.4 cm x 24.4 cm)