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ASUS Prime B660M-A D4 Intel® B660 LGA 1700 mATX motherboard with PCIe 4.0, two M.2 slots, Intel® 1Gb Ethernet, DP,2 x HDMI®, rear USB 3.2 Gen 2, front USB 3.2 Gen 1 Type-C, Aura Sync


  • Intel® LGA 1700 socket: Ready for 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
Huge Savings | Fast Shipping | 25 Years of Service | Manufacturer Warranty

12,840.00 17,980.00

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ASUS

All-Around Energy Efficiency

The Energy Processing Unit (EPU) automatically optimizes power consumption and maximizes energy savings with Away mode — a smart setting that creates an extreme energy-saving scenario by shutting down unused I/O controllers.

UEFI BIOS

Advanced Tuning for Serious Tweakers

An intuitive Advanced mode offered via the UEFI lets you take complete control. A built-in search feature makes it easy to find options, and various advanced functions let you intelligently make nuanced adjustments so you can dial in performance just the way you want.

MemTest 86

This memory testing software is pre-installed into the UEFI BIOS and lets you pinpoint memory issues with just one click, without the need for a USB stick or going into the OS. It stores the memory report in the BIOS archives for reference.

Prediction

AI Overclocking monitors system vitals such as temperature, fan speed, and power draw to estimate overclocking performance.

AI Overclocking Guide

Refer to the guide offered in the UEFI BIOS for step-by-step instructions detailing how to use AI Overclocking.

Search Function

Quickly and easily find the option or setting you need.

ASUS User Profile

Port configuration settings between different BIOS versions or share them with friends.

FlexKey

Remap the reset button on the chassis to toggle Aura lighting, activate the DirectKey to go straight to the UEFI BIOS, or reset the system.

ASUS

Removable captive screws reduce risk of drops or loss during heatsink removal.

Prime B660 series feature comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS.
ASUS

Multiple Temperature Sources

Each header can dynamically reference three thermal sensors. Fan Xpert 2+ allows you to map the temperature of supported ASUS graphics cards to optimize cooling for GPU- and CPU-intensive t

Robust Power Design

Stable power is essential to extract every last bit of performance out of 12th Generation Intel processors. PRIME B660M-A D4-CSM is geared to cater to the demands of these high-core-count CPUs.

ASUS

ProCool Connector

Proprietary connector augments the motherboard’s link to the PSU with 8 pin connector that passes 12 volts of power directly to the processors. Each jack features solid pins that can handle more current than hollow-pin connectors.
ASUSASUS
ASUS

DDR4 5333(OC)

Improvements to trace routing design provide the latest Intel processors with enhanced access to memory bandwidth. ASUS OptiMem II technology carefully maps memory signal pathways across different PCB layers to reduce path distance, and it adds shielding zones that significantly reduce crosstalk.

Storage

Two M.2 slots (up to 64 Gbps)

PRIME B660M-A D4-CSM offers a total of two M.2 slots that support data-transfer speeds of up to 64 Gbps via PCIe® 4.0, enabling quicker boot-up and app load times with OS or application drives.

* Actual transmission speeds will be lower than the theoretical maximum speed.

ASUS
ASUS

PCIe® 4.0 Slot

Prime B660 motherboards are designed specifically for 12th Generation Intel® Core™ CPUs and offer PCIe® 4.0 connectivity for the latest GPUs. The wide bandwidth and superfast transmission speeds allow you to create feature-rich builds that can handle high loads effortlessly.

Aura Sync

Outshine the Competition
A well-tuned enthusiast system deserves a matching aesthetic. ASUS Aura offers full RGB lighting control with a variety of functional presets for the built-in RGB LEDs as well as strips and devices connected to the onboard RGB headers — and it can all be synced with an ever-growing portfolio of Aura-capable hardware.

Static

Breathing

Strobing

Rainbow

Color Cycle

Starry Night

Music Effect

Smart

Dark

Adaptive Color

ASUS

SKU: asus-prime-b660m-a-d4-lga-1700-m-atx-motherboard Categories: , , Tag: Brands
BRAND

SOCKET

CHIPSET

SUPPORTED MEMORY TYPE

MAX MEMORY SUPPORT

MULTI GPU SUPPORT

FORM FACTOR

SLOTS

2 x M.2, 22-42/60/80, PCIe Gen4x4
1 x PCIe 3.0 x16 (x1 Bandwidth)
1 x PCIe 3.0 x16 (x4 Bandwidth)
1 x PCIe 4.0 x16
4 x SATA 6GB/s

STORAGE

PRIME B660M-A D4
 Note: The specifications are subject to change without notice. 
CPUIntel® Socket LGA1700 for 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, 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
*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).
Graphics1 x DisplayPort ** 
2 x HDMI® ports***  
* Graphics specifications may vary between CPU types. Please refer to www.intel.com for any updates.
** Supports max. [email protected] as specified in DisplayPort 1.4. 
***Supports [email protected] as specified in HDMI 2.1.  
Expansion Slots Intel® 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 Total supports 2 x M.2 slots and 4x SATA 6Gb/s ports
Intel® 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.
Ethernet1 x Intel® 1Gb Ethernet
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
AudioRealtek 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 ConnectorsFan 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 FeaturesASUS 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 64-bit, Windows® 10 64-bit 
Form Factor mATX Form Factor
9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )

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