MAINBOARD ASUS PRIME B660M-A D4

PRIME B660M-A D4

Intel® Socket LGA1700 for 13th Gen Intel® Core™ Processors & 12th Gen Intel® Core™, Pentium® Gold and Celeron® Processors*
Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0**
* Refer to www.asus.com for CPU support list.
** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types.

Intel® B660 Chipset

4 x DIMM, Max. 128GB, DDR4
5333(OC)/5066(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 Non-ECC, Un-buffered Memory* 
Dual Channel Memory Architecture
Supports Intel® Extreme Memory Profile (XMP)
OptiMem II
*Actual memory data rate depends on the CPU types and DRAM modules, for more information refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).

1 x DisplayPort **  
2 x HDMI® ports***  
* Graphics specifications may vary between CPU types. Please refer to www.intel.com for any updates.
** Supports max. 4K@60Hz as specified in DisplayPort 1.4.  
***Supports 4K@60Hz as specified in HDMI 2.1.  

Intel® 13th & 12th Gen Processors
1 x PCIe 4.0/3.0 x16 slot
Intel® B660 Chipset *
1 x PCIe 3.0 x16 slot (supports x4 mode)
1 x PCIe 3.0 x16 slot (supports x1 mode)
*Supports Intel® Optane Memory H Series on PCH-attached PCIe slot

Total supports 2 x M.2 slots and 4x SATA 6Gb/s ports
Intel® 13th & 12th Gen Processors
M.2_1 slot (Key M), type 2242/2260/2280
- Intel® 13th & 12th Gen processors support PCIe 4.0 x4 mode.  
Intel® B660 Chipset**
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)*
4 x SATA 6Gb/s ports
* Intel® Rapid Storage Technology supports  SATA RAID 0/1/5/10.
** Intel® Rapid Storage Technology supports Intel® Optane Memory H Series on PCH attached M.2 slots.

1 x Intel® 1Gb Ethernet

Rear USB (Total 6 ports)
2 x USB 3.2 Gen 2 ports (2 x Type-A )
4 x USB 2.0 ports (4 x Type-A)  
Front USB (Total 10 ports)
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

Realtek 7.1 Surround Sound High Definition Audio CODEC*
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192 kHz playback "
Audio Features  
- Audio Shielding  
- Premium audio capacitors
- Dedicated audio PCB layers
** A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

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  

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

ASUS 5X PROTECTION III  
- DIGI+ VRM  
- Enhanced DRAM Overcurrent Protection
- ESD Guards  
- LANGuard  
- Overvoltage Protection
- SafeSlot Core+
- Stainless-Steel Back I/O
ASUS Q-Design  
- Q-DIMM
- Q-Slot
ASUS Thermal Solution
- M.2 heatsink
- VRM heatsink design
ASUS EZ DIY
- ProCool  
AURA Sync
- AURA RGB header
- Addressable Gen 2 RGB headers

ASUS Exclusive Software
Armoury Crate
- AURA Creator
- AURA Sync
- Fan  Xpert 2+
AI Suite 3
- Performance And Power Saving Utility
  TurboV EVO
  EPU  
  Digi+ VRM
ASUS CPU-Z
Norton Anti-virus software (Free Trial version)  
WinRAR
UEFI BIOS
ASUS EZ DIY  
- ASUS CrashFree BIOS 3  
- ASUS EZ Flash 3  
- ASUS UEFI BIOS EZ Mode

128 Mb Flash ROM, UEFI AMI BIOS

WOL by PME, PXE

Cables
2 x SATA 6Gb/s cables  
Miscellaneous
1 x I/O Shield  
1 x M.2 Rubber Package
1 x M.2 SSD screw package
Installation Media
1 x Support DVD  
Documentation
1 x User manual

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

mATX Form Factor
9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )