Asus MB PRIME B660M-A D4-CSM, S.1700, B660, DDR4/5333(OC), PCIe 4.0, 2×HDMI/DP, mATX

Features
- Intel LGA 1700 socket: Ready for 13th & 12th Gen Intel® processors
- Ultrafast connectivity : PCIe 4.0, Intel 1 Gb Ethernet ,rear USB 3.2 Gen 2 Type-A and front USB 3.2 Gen 1 Type-A and Type-C
- ASUS OptiMem II: Careful routing of traces and vias, plus ground layer optimizations to preserve signal integrity for improved memory overclocking
- Comprehensive cooling: VRM heatsink, M.2 heatsink, PCH heatsink, hybrid fan headers and Fan Xpert 2+
- ASUS Control Center Express(ACCE) to make IT endpoint management easier

Specifications
- 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**
* Refer to www.asus.com for CPU support list.
* Intel Turbo Boost Max Technology 3.0 support depends on the CPU types.

Chipset
- Intel B660 Chipset

Memory
- 4 x DIMM, Max. 128GB, DDR45333(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).

Graphics
- 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.

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)
* Supports Intel Optane Memory H Series on PCH-attached PCIe slot

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
* 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.

Ethernet
- 1 x Intel® 1Gb Ethernet
- ASUS LANGuard

USB
- 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

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
** A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

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