PRO B660-A DDR4

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• Supports 12th Gen Intel Core™, Pentium Gold and Celeron processors for LGA 1700 socket
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• Supports DDR4 Memory, up to 4800+(OC) MHz
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• Lightning Fast Experience: PCIe 4.0 slots, Lightning Gen4 x4 M.2 with M.2 Shield Frozr
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• Premium Thermal Solution: Extended Heatsink Design, MOSFET thermal pads rated for 7W/mk and M.2 Shield Frozr are built for high performance system and non-stop works
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• 2.5G LAN: Upgraded network solution for professional and multimedia use. Delivers a secure, stable and fast network connection
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• Turbo USB 3.2 Gen 2: Powered by USB 3.2 Gen2 controller, Turbo USB ensures an uninterrupted connection with more stability and fastest USB speeds
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• High Quality PCB: 6-layer PCB made by 2oz thickened copper level material
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• Multi-GPU: With Steel armor PCI-E slots. Supports AMD Crossfire™
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• Audio Boost: Reward your ears with studio grade sound quality
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PROCESSOR

Supports 12th Gen Intel Core™ Processors, Pentium Gold and Celeron Processors*
Processor socket LGA1700
*Please go to msi.com to get the newest support status as new processors are released.

CHIPSET

Intel B660 Chipset

MEMORY

4x DDR4 memory slots, support up to 128GB*
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)
*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 2048x1536 60Hz, 1920x1200 60Hz
1x HDMI 2.1 with HDR port, supports a maximum resolution of 4K 60Hz */
1x DisplayPort 1.4 port, supports a maximum resolution of 4K 60Hz */
*Available only on processors featuring integrated graphics.
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)*
*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
*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

Keyboard / Mouse
DisplayPort
2.5G LAN
USB 2.0
Audio Connectors
USB 2.0
VGA
HDMI
USB 3.2 Gen2 10Gbps (Type-A)
USB 3.2 Gen2 10Gbps (Type-C)
Optical S/PDIF Out
MSI PRO B660-A DDR4 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)