ASUS PRIME B660M-A D4/LGA 1700/mATX

Chipset: Intel B660 Chipset

Dimensional format: microATX (24.4cm x 24.4cm)
Processor Support: 12th Gen Intel Core, Pentium Gold and Celeron Processors
Processor socket: LGA1700

Memory position: 4 x DDR4 DIMMs
Memory support: DDR4 5333 (OC)/5000 (OC)/4800 (OC)/4600 (OC)/4400 (OC)/4266 (OC)/4000 (OC)/3733 (OC)/3600 (OC)/3466 (OC)/3400 (OC)/3333 (OC)/3200/3000/2933/2800/2666/2400/2133 MHz
Max. RAM size: 128 GB

Graphics card: (based on processor)

• 1 x DisplayPort
• 2 x HDMI port

Sound card: Realtek 7.1 Surround Sound High Definition Audio CODEC

Network card: 1 x Intel 1Gb Ethernet

Expansion slots:

• 1 x PCIe 4.0/3.0 x16 slot
• 1 x PCIe 3.0 x16 slot (supports x4 mode)
• 1 x PCIe 3.0 x16 slot (supports x1 mode)

RAID controller: RAID 0/1/5/10

SATA: 4x SATA 6Gb/s port

M.2: 2 x M.2 slots

USB:

• Internal:
• 2 x USB 3.2 Gen 1 headers support additional 4 USB 3.2 Gen 1 ports
• 1 x USB 3.2 Gen 1 connector (supports USB Type-C)
• 2 x USB 2.0 headers support additional 4 USB 2.0 ports
• 1 x USB 2.0 header supports 1 USB 2.0 port
• External:
• 2 x USB 3.2 Gen 2 ports (2 x Type-A)
• 4 x USB 2.0 ports (4 x Type-A)

Internal ports:

• Fan and Cooling related
• 1 x 4-pin CPU Fan header
• 1 x 4-pin CPU OPT Fan header
• 2 x 4-pin Chassis Fan headers
• Power related
• 1 x 24-pin Main Power connector
• 1 x 8-pin + 12V Power connector
• Storage related
• 2 x M.2 slots (Key M)
• 4 x SATA 6Gb/s ports
• USB
• 2 x USB 3.2 Gen 1 headers support additional 4 USB 3.2 Gen 1 ports
• 1 x USB 3.2 Gen 1 connector (supports USB Type-C)
• 2 x USB 2.0 headers support additional 4 USB 2.0 ports
• 1 x USB 2.0 header supports 1 USB 2.0 port
• Miscellaneous
• 3 x AURA Addressable Gen 2 headers
• 1 x AURA RGB header
• 1 x Clear CMOS header
• 1 x COM Port header
• 1 x Front Panel Audio header (AAFP)
• 1 x LPT header
• 1 x S/PDIF Out header
• 1 x SPI TPM header (14-1pin)
• 1 x 20-3 pin System Panel header with Chassis intrude function

External ports:

• 2 x USB 3.2 Gen 2 ports (2 x Type-A)
• 4 x USB 2.0 ports (4 x Type-A)
• 1 x DisplayPort
• 2 x HDMI ports
• 1 x Intel 1Gb Ethernet port
• 3 x Audio jacks
• 1 x PS/2 Keyboard/Mouse combo port

BIOS: UEFI AMI BIOS, 128 Mb Flash ROM