MSI PRO B660-A DDR4 Motherboard, ATX - Intel 12th Gen Processors

PRO B660-A DDR4

CPU (Max Support)
Socket
Chipset
DDR4 Memory
Memory Channel
DIMM Slots
Max Memory (GB)
PCI-E x16
PCI-E x1
SATAIII
M.2 Slot
RAID
TPM (header)
LAN
USB 3.2 ports (Front)
USB 3.2 ports (Rear)
USB 2.0 ports (Front)
USB 2.0 ports (Rear)
Audio ports (Rear)
DisplayPort
VGA
HDMI
DirectX
CrossFire
Operating System
Form Factor

CPU (Max Support)

Socket

1700

Chipset

Intel® B660 Chipset

DDR4 Memory

4800(OC)/ 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 Channel

Dual

DIMM Slots

Max Memory (GB)

128

PCI-E x16

PCI-E x1

SATAIII

M.2 Slot

RAID

0/1/5/10

TPM (header)

1x Realtek® RTL8125BG 2.5Gbps LAN controller

USB 3.2 ports (Front)

1(Gen 1, Type C), 2(Gen 1, Type A)

USB 3.2 ports (Rear)

1(Gen 2, Type C), 2(Gen 2, Type A)

USB 2.0 ports (Front)

USB 2.0 ports (Rear)

Audio ports (Rear)

Realtek® ALC897 Codec

DisplayPort

HDMI

DirectX

CrossFire

Operating System

Support for Windows® 11 64-bit, Windows® 10 64-bit

Form Factor

ATX

All images and descriptions are for illustrative purposes only. Visual representation of the products may not be perfectly accurate. Product specification, functions and appearance may vary by models and differ from country to country . All specifications are subject to change without notice. Please consult the product specifications page for full details.Although we endeavor to present the most precise and comprehensive information at the time of publication, a small number of items may contain typography or photography errors. Products may not be available in all markets. We recommend you to check with your local supplier for exact offers.

Processor

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

Processor socket LGA1700

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)

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

See supported 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 ¹²
1x DisplayPort 1.4 port, supports a maximum resolution of 4K 60Hz ¹²

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) 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

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 Realtek^® 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

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)

Box content

MSI^® does not guarantee the risks or damages caused by changing the cover.
These pictures are for reference only and may vary without notice.

All images and descriptions are for illustrative purposes only. Visual representation of the products may not be perfectly accurate. Product specification, functions and appearance may vary by models and differ from country to country . All specifications are subject to change without notice. Please consult the product specifications page for full details.Although we endeavor to present the most precise and comprehensive information at the time of publication, a small number of items may contain typography or photography errors. Products may not be available in all markets. We recommend you to check with your local supplier for exact offers.