ASUS PRIME B660M-A WIFI D4 mATX Motherboard

3 Year Limited Warranty

PRIME B660M-A WIFI D4
Intel® B660 (LGA 1700) mATX motherboard with PCIe 4.0, two M.2 slots, Intel® 1Gb Ethernet, Intel® Wi-Fi 6 , 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 / 13th Gen Intel® processors
- Ultrafast connectivity : Intel® Wi-Fi 6, 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+




PRIME
ASUS Prime series motherboards are expertly engineered to unleash the full potential of 12th Generation Intel® processors. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B660 provides users and PC DIY builders a range of performance tuning options via intuitive software and firmware features.

ASUS PRIME B660M-A WIFI D4 offers a sleek, futuristic-looking build with a black and white finish, space-shuttle-inspired design elements, metallic nameplate and PCB cover.




FLEXIBILITY
Comprehensive controls form the foundation of the ASUS Prime series. The Prime B660 motherboard packs flexible tools to tune every aspect of your system, enabling performance tweaks to perfectly match the way you work to maximize productivity.

Intelligent Control
EPU - 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.




Fan Xpert 2+ - Flexible Air- and Liquid-Cooling Controls
ASUS Fan Xpert 2+ software provides comprehensive control over fans, water pumps and all-in-one (AiO) coolers. Whether cooling with air or water, an Auto-Tuning mode intelligently configures all parameters with a single click. There's also an Extreme Quiet mode that reduces all fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fans, water pumps and AiO coolers can also be controlled via the UEFI BIOS.




Digi+ VRM Control - Precise Digital Power Control
The Digi+ voltage-regulator module (VRM) delivers real-time control over voltage droop, automatically switching frequency and power-efficiency settings. It also allows you to fine-tune your CPU for ultimate stability and performance.




UEFI BIOS
The renowned ASUS UEFI BIOS provides everything you need to configure, tweak and tune your system. It offers intelligently simplified options for PC DIY beginners, as well as comprehensive features for seasoned veterans.

Advanced Mode - 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.

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.




EZ Mode - Quick and Simple Setup
EZ mode displays vital settings and stats and also offers guided wizards, drag-and-drop functionality, and one-click application of important settings - all to help you get your rig up and running in no time.

EZ XMP
Improve DRAM performance with one click.

Intuitive Graphical Fan Control
Fine-tune individual fan settings simply by dragging a curve with the mouse.

Aura On/Off Mode (Stealth)
Easily enable or disable Aura RGB lighting or every onboard LED, for a subdued aesthetic touch.




COOLING
Prime B660 series are engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.

M.2 Heatsink
M.2 heatsink wards off throttling that can occur with M.2 storage during sustained transfers. The heatsink is held in place by captive screws.

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




VRM Heatsink and Thermal Pad
VRM heatsink and thermal pad improve heat transfer from the MOSFETs and chokes for better cooling performance.




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

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 tasks.




Smart Protection
A dedicated integrated circuit protects each fan header from overheating and overcurrent.




4-Pin PWM/DC Fan
Each onboard header supports auto-detection of PWM or DC fans.




PERFORMANCE
Prime B660 series are built to handle the additional cores and increased bandwidth of 12th Generation Intel® processors. ASUS B660 motherboards provide all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options.

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

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.




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.




ASUS OptiMem II
Revisions to the motherboard's trace routing provide the latest Intel processors with unrestricted access to memory bandwidth. ASUS OptiMem II technology carefully maps memory signal pathways across different PCB layers to reduce vias and adds shielding zones that significantly reduce crosstalk.

Benefits of ASUS OptiMem II:

- Improved memory stability and compatibility
- Allows lower memory latencies at equivalent voltages
- Improved memory frequency margin

Motherboards with OptiMem II technology were tested with Synopsys HSPICE simulation software
Top layer - ground ring to prevent lateral interference




Two M.2 slots (up to 64 Gbps)
Prime B660M-A WIFI D4 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.




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.




USB 3.2 Gen 1 Type-C®
Numerous USB ports support high-end rigs loaded with peripherals, including front USB Type-C® connectors with fast USB 3.2 Gen 1 for transmission speeds of up to 5 Gbps.




CUSTOMIZATION
Prime B660 series add the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look.

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.




Addressable Gen 2 Headers
Three addressable Gen 2 headers are capable of detecting the number of LEDs on second-gen addressable RGB devices, allowing the software to automatically tailor lighting effects to specific devices. The new headers also offer backward-compatibility with existing Aura RGB gear.




Armoury Crate
Armoury Crate is a new software utility designed to give you centralized control of supported products. From a single intuitive interface, Armoury Crate allows you to easily customize RGB lighting and effects for every compatible device in your arsenal. The software also provides control of settings for an ever-growing number of ASUS products, including keyboard and mouse preferences. Armoury Crate even features dedicated product registration and news to help you stay in touch with the ASUS community.




Q-LED Core
The Q-LED Core display produces light patterns by power LED during the Power-On Self-Test (POST) that can help users troubleshoot potential issues.




SafeSlot Core+
SafeSlot Core+ is the ASUS-exclusive PCIe slot fortified with a one-piece stainless-steel brace that shields the slot to protect it from damage. The metal cover is tightly secured to the slot with hooks, and the entire assembly is firmly anchored to the PCB with strengthened solder points to provide a secure foundation for heavyweight graphics cards.




Strengthened solder points around the PCIe and DIMM pins.




Metal inserts keep graphics cards properly aligned during installation.




The metal side-panels feature hooks that firmly clasp the slot body.




LANGuard
Pumped-up throughput 2.5X higher surge tolerance
ASUS LANGuard is a hardware-level network protection feature that integrates advanced signal-coupling technology and premium anti-EMI surface-mounted capacitors to improve throughput and ensure a more reliable connection.




Overvoltage Protection
World-class circuit-protecting power design
An exclusive circuit design with built-in voltage regulators to protect your motherboard from damage caused by unexpected high-level voltages from unstable or inferior power supplies.




DRAM Overcurrent Protection
Short-circuit damage prevention
Onboard resettable fuses prevent overcurrent and short-circuit damage. This extends beyond I/O ports to DRAM to safeguard the lifespan of your system and connected devices.




Stainless-Steel Back I/O
3X corrosion-resistance for greater durability
Corrosion-resistant stainless-steel back I/O panels bonded with chromium oxide have a lifespan that's three times longer than ordinary panels.




1000+ Compatible devices and components
The Prime H670 series provides superior compatibility with thousands of components and our memory support list identifies memory compatibility, giving you more choices for worry-free PC-building experiences.

8000+ Validation hours
Every ASUS motherboard is subjected to more than 8,000 hours of stringent tests, including burn-in, environmental, compatibility, software and safety tests to confirm their durability. ASUS reliability surpasses industry standards, ensuring that every component is designed to function flawlessly in any environment.

Temperature and humidity tests
Ensures components withstand extreme conditions.




Thermal measurement tests
Ensures that the system remains cool and stable under the heaviest loads.




Insertion tests
Every port and connector is put through repeated installation cycles.




Aging tests
Up to 48-hour aging test ensures reliability.




Power-consumption tests
Checked for world-class energy efficiency.




Temperature and DC margin tests
Ensures that the motherboard is capable of coping with voltages fluctuations caused by varying temperatures.




Thermal-shock tests
Ensures ability to survive temperature changes during transportation.




Non-operation shock tests
Built to withstand jolts that may occur during shipping.




Burn-in tests
Every component is checked to ensure flawless operation.




Installation tests
Connector placement is double-checked to ensure hassle-free installation.




Drop tests
Drop tests from various heights ensure durability.




Salt and spray tests
Tested for I/O reliability, prolonged lifespan and rust-resistance.


Specifications
CPU

Intel® Socket LGA1700 for 12th/13th Gen Intel® Core™, Pentium® Gold and Celeron® Processors
Intel® 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 memory support list.

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® 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® 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

Wireless & Bluetooth

2x2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Supports 2.4/5GHz frequency band
Bluetooth v5.2

USB

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

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 headers support additional 1 USB 2.0 port

Audio

ALC897
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 Wi-Fi Module
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 header
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 support 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
MyAsus
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 ASUS Wi-Fi moving antennas
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

microATX
24.4cm x 24.4cm