MSI PRO B660-A DDR4 MOTHERBOARD

PROCESSOR

Supports 12th Gen Intel^® Core™ Processors, Pentium^® Gold and Celeron^® Processors¹

Processor socket LGA1700

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

See supported processors

CHIPSET

Intel^® B660 Chipset

MEMORY

• 4x DDR4 memory slots, support up to 128GB ¹
  • 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 www.msi.com for more information on compatible memory

EXPANSION SLOT

• 2x PCIe x16 slots
  • PCI_E1 (from CPU)
    • Support PCIe 4.0 x16
  • PCI_E3 (From B660 chipset)
    • Support PCIe 3.0 x4
• 3x PCIe x1 slots (From B660 chipset)
• 1x M.2 slot with E-key for PCIe WiFi module only (M2_3)

ONBOARD GRAPHICS

• 1x VGA port, supports a maximum resolution of 2048×1536 60Hz, 1920×1200 60Hz
• 1x HDMI 2.1 with HDR port, supports a maximum resolution of 4K 60Hz ¹²
• 1x DisplayPort 1.4 port, supports a maximum resolution of 4K 60Hz ¹²

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

MULTI-GPU

• Supports AMD^® CrossFire^™ Technology

SATA PORTS

• 4x SATA 6Gb/s ports (From B660 chipset) ¹

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

M.2 SSD SLOT

• 2x M.2 slots (Key M)
  • M2_1 slot (from CPU)
    • Supports PCIe 4.0 x4
    • Supports 2242/ 2260/ 2280/ 22110 storage devices
  • M2_2 slot (From B660 chipset)
    • Supports PCIe 4.0 x4
    • Supports SATA 6Gb/s
    • Supports 2242/ 2260/ 2280 storage devices
    • Support Intel^® Optane™ Memory
  • Supports Intel® Smart Response Technology for Intel Core™ processors
• Support Intel^® Smart Response Technology for Intel Core™ processors

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

RAID

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

AUDIO

Realtek^® ALC897 Codec

• 7.1-Channel High Definition Audio

LAN

• 1x Intel^® 8125BG 2.5SGbps LAN controller

POWER CONNECTORS

• 1x 24-pin ATX main power connector
• 1x 8+1x 4-pin ATX 12V power connectors

INTERNAL USB CONNECTORS

• 1x USB 3.2 Gen 1 5Gbps Type-C port (From B660 chipset)
• 1x USB 3.2 Gen 1 5Gbps connector (From B660 chipset)
  • Supports additional 2 USB 3.2 Gen 1 5Gbps ports
• 1x USB 2.0 connector (From USB Hub GL850G)
  • Supports additional 2 USB 2.0 ports

FAN CONNECTORS

• 1x 4-pin CPU fan connector
• 1x 4-pin water-pump fan connector
• 5x 4-pin system fan connectors

SYSTEM CONNECTORS

• 1x Front panel audio connector
• 2x System panel connectors
• 1x Chassis Intrusion connector
• 1x TPM module connector
• 1x Tuning controller connector
• 1x TBT connector (Supports RTD3)

JUMPERS

• 1x Clear CMOS jumper

LED FEATURE

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

BACK PANEL PORTS

I/O CONTROLLER

• NUVOTON NCT6687-R Controller Chip

HARDWARE MONITOR

• CPU/ System/ Chipset temperature detection
• CPU/ System/ Pump fan speed detection
• CPU/ System/ Pump fan speed control

DIMENSIONS

• ATX Form Factor
• 12 in. x 9.6 in. (30.5 cm x 24.4 cm)