MB ASUS PRIME B660M-A D4-CSM B660 LGA1700 4xDDR4DC-5333oc 2xHDMI DP 1xPCIe4.0x16 4xSATA3r M2 GBLAN USB3.2 mATX 90MB19 Fino:30/04

CPU
Intel® Socket LGA1700 for 13th Gen Intel® Core™ & 12th Gen Intel® Core™, Pentium® Gold and Celeron® Processors
Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0

Chipset
Intel® B660 Chipset

Memory
4 x DIMM, Max. 128GB, 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 Non-ECC, Un-buffered Memory
Dual Channel Memory Architecture
Supports Intel® Extreme Memory Profile (XMP)
OptiMem II

Graphics
1 x DisplayPort
2 x HDMI® ports
Supports max. 4K 60Hz as specified in DisplayPort 1.4
Supports 4K 60Hz as specified in HDMI 2.1

Expansion Slots
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)

Storage
Supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
Intel® 13th & 12th Gen Processors: 
- M.2_1 slot (Key M), type 2242/2260/2280
- Intel® 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

Ethernet
1 x Intel® 1Gb Ethernet
ASUS LANGuard

USB
Rear USB: 
- 2 x USB 3.2 Gen 2 ports (2 x Type-A)
- 4 x USB 2.0 ports (4 x Type-A)
Front 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

Audio
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

Back Panel I/O 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

Internal I/O Connectors
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

Special Features
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

Software Features
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

BIOS
128 Mb Flash ROM, UEFI AMI BIOS

Manageability
WOL by PME, PXE

Accessories
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

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

Form Factor
microATX
24.4cm x 24.4cm