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 5333+ 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 to www.msi.com for more information on compatible memory.         

Expansion Slot

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-GPU

Supports 2-Way AMD® CrossFire™ Technology   

Onboard Graphics

1x HDMI™ 2.1 with HDR port, supports a maximum resolution of 4K 60Hz 1 / 2    

1x DisplayPort 1.4 port with HBR3, supports a maximum resolution of 4K 60Hz 1 / 2          

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

Storage

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           

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 1 

SATA_A & SATA_B do not support RAID function.

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   

Audio

Realtek® ALC1200 Codec             

7.1-Channel High Definition Audio           

Supports S/PDIF output

LAN

1x Realtek® 8125BG 2.5Gbps LAN controller        

Wireless LAN & Bluetooth®         

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              

Internal 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  

LED Feature       

4x EZ Debug LED              

1x 4-pin RGB LED connector        

2x 3-pin RAINBOW LED connectors          

Back panel ports

USB 2.0 Port      

DisplayPort 1.4 

USB 3.2 Gen 2 10Gbps Type-A   

2.5G LAN Port   

Wi-Fi / Bluetooth Antenna          

HD Audio Connectors    

HDMI™ 2.1 Port

USB 3.2 Gen 2x2 20Gbps Type-C

Optical S/PDIF OUT         

Dimensions

Micro-ATX Form Factor  

9.6 in. x 9.6 in. (24.4 cm x 24.4 cm)          

Box content

MAG B660M MORTAR WIFI DDR4 Motherboard

2 x SATA Cables

EZ M.2 Clips

Wi-Fi Antenna

MAG Stickers

MSI Case Badge

Driver DVD

Product Registration Card

Quick Installation Gude