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 B660M-K D4 provides users and PC DIY builders a range of performance tuning options via intuitive software and firmware features.
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.
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 – Flexible Air- and Liquid-Cooling Controls
ASUS Fan Xpert software provides comprehensive control over fan. There’s an Extreme Quiet mode that reduces fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fan 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.
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.
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.
Intuitive Graphical Fan Control
Fine-tune individual fan settings simply by dragging a curve with the mouse.
Improve DRAM performance with one click.
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.
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 software or via the UEFI BIOS.
Multiple Temperature Sources
Each header can dynamically reference three thermal sensors. Fan Xpert allows you to map the temperature of supported ASUS graphics cards to optimize cooling for GPU- and CPU-intensive tasks.
4-Pin PWM/DC Fan
The chassis fan header supports auto-detection of PWM or DC fans.
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.
Stable power is essential to extract every last bit of performance out of 12th Generation Intel processors. Prime B660M-K D4 is geared to cater to the demands of these high-core-count CPUs.
Proprietary connectors augment the motherboard’s link to the PSU with 8 pin connectors that pass 12 volts of power directly to the processors. Each jack features solid pins that can handle more current than hollow-pin connectors.
6+1+1 Power Stages
A VRM with 6+1+1 Power Stages delivers the power and efficiency that the latest Intel processors demand.
Improvements to trace routing design provide the latest Intel processors with enhanced access to memory bandwidth. ASUS technology carefully maps memory signal pathways across different PCB layers to reduce path distance, and it adds shielding zones that significantly reduce crosstalk.
Two M.2 slots (up to 64 Gbps)
Prime B660M-K 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 B660M-K D4 is designed specifically for 12th Generation Intel® CoreTM CPUs and offer PCIe® 4.0 connectivity. The wide bandwidth and superfast transmission speeds allow you to create feature-rich builds that can handle high loads effortlessly.
Realtek 1 Gb Ethernet
Realtek 1 Gb Ethernet reduces CPU overhead and offers exceptionally high TCP and UDP throughput for faster, smoother data transfer.
– Lower CPU workload
– High TCP and UDP throughput
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.
Audio – Combined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced.
Separates analog/digital signal domains, significantly reducing multi-lateral interference.
Separate Layer for Left and Right Tracks
Ensures minimal crosstalk between audio paths.
Premium Audio Capacitors
Premium parts provide an immersive sound signature, with exceptional fidelity.
Lighting Control Brighten Up Your Build
With 5050 RGB strips connected to the RGB header, you can create your own stunning multicolor lighting displays with static, blinking, fading, and strobing effects.
* The RGB-strip header supports 5050 RGB LED strips with a max power rating of 3A (12V). For maximum brightness, strip length should not exceed 3m.
** RGB LED Strips are sold separately.
Armoury Crate is a new software utility designed to give you centralized control of supported products_utf8mb4. From a single intuitive interface. The software also provides control of settings for an ever-growing number of ASUS products_utf8mb4, including keyboard and mouse preferences. Armoury Crate even features dedicated product registration and news to help you stay in touch with the ASUS community.
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 is the ASUS-exclusive PCIe® slot. Featuring a fortified design that’s anchored to the motherboard by a special hook, Safeslot Core provides 1.6X-stronger retention and 1.3X-greater shearing resistance than standard expansion slots.
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.
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 B660 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.
Every port and connector is put through repeated installation cycles.
Up to 48-hour aging test ensures reliability.
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.
Ensures ability to survive temperature changes during transportation.
Non-operation shock tests
Built to withstand jolts that may occur during shipping.
Every component is checked to ensure flawless operation.
Connector placement is double-checked to ensure hassle-free installation.
Drop tests from various heights ensure durability.
Salt and spray tests
Tested for I/O reliability, prolonged lifespan and rust-resistance.
|Model||PRIME B660M-K D4|
|CPU Socket Type||LGA 1700|
|CPU Type||Supports 13th / 12th Gen Intel Core, Pentium Gold, Celeron Processors*|
* Refer to www.asus.com for CPU support list.
|Supported CPU Technologies||Supports Intel Turbo Boost Technology 2.0 and Intel Turbo Boost Max Technology 3.0*|
* Intel Turbo Boost Max Technology 3.0 support depends on the CPU types.
|Onboard Video Chipset||Supported only by CPU with integrated graphic|
|Number of Memory Slots||2x288pin (DDR4)|
|Memory Standard||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 *|
* 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).
|Maximum Memory Supported||64GB|
|Channel Supported||Dual Channel|
|PCI Express 4.0 x16||1 x PCI Express 4.0 x16|
* Actual support may vary by CPU.
|PCI Express x1||2 x PCIe 3.0 x1|
|SATA 6Gb/s||4 x SATA 6Gb/s|
|M.2||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)* Intel Rapid Storage Technology supports Intel Optane Memory H Series on PCH attached M.2 slots.
|Intel Optane Ready||Yes|
|Audio Channels||7.1 Channels*|
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
|Max LAN Speed||1Gbps|
|Back I/O Ports||4 x USB 3.2 Gen 1 ports (4 x Type-A)|
2 x USB 2.0 ports (2 x Type-A)
1 x D-Sub port
1 x HDMI port
1 x Realtek 1Gb Ethernet port
3 x Audio jacks
1 x PS/2 Keyboard/Mouse combo port
|Onboard USB||1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports|
2 x USB 2.0 headers support additional 4 USB 2.0 ports
|Other Connectors||Fan and Cooling related|
1 x 4-pin CPU Fan header
1 x 4-pin Chassis Fan header
1 x RGB header
1 x Clear CMOS header
1 x COM Port header
1 x Front Panel Audio header (AAFP)
1 x S/PDIF Out header
1 x Speaker header
1 x SPI TPM header (14-1pin)
1 x 10-1 pin System Panel header
|Form Factor||Micro ATX|
|Dimensions (W x L)||9.6″ x 8.3″|
|Power Pin||1 x 24-pin Main Power connector|
1 x 8-pin +12V Power connector
2 x SATA 6Gb/s cables
1 x I/O Shield
2 x M.2 anchors
1 x Support DVD
1 x User manual