ASUS PRIME B660-PLUS D4 Intel B660 LGA 1700 ATX

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 with a range of performance tuning options via intuitive software and firmware features.

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 you to tweak performance to perfectly match the way you work to maximize productivity.

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.

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.

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 and comprehensive features for seasoned veterans.

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.

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.

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
An M.2 heatsink takes care of the two M.2 slots, warding off throttling that can occur with M.2 storage during sustained transfers. The heatsink is held in place by captive screws.

VRM Heatsink and Thermal Pads
The VRM heatsink and thermal pads improve heat transfer from the MOSFETs and chokes for better cooling performance.

Multiple Temperature Sources
Each header can be dynamically assigned to 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.

AIO Pump Header
A dedicated PWM/DC header for self-contained water cooling setups.

Smart Protection
A dedicated integrated circuit protects each fan header from over-temperature and overcurrent.

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

Robust Power Design

Stable power is essential to extract every last bit of performance from 12th Generation Intel processors. PRIME B660-PLUS D4 is geared to cater to the demands of these high-core-count CPUs.

ProCool Connector
Proprietary connectors augment the motherboard's link to the PSU with 8-pin connectors that pass 12-volt power directly to the processors. Each jack features solid pins that can handle more current than hollow-pin counterparts.

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 path distance, and it adds shielding zones that significantly reduce crosstalk.
ASUS OptiMem II benefits:
Improved memory stability and compatibility
Allows lower memory latencies at equivalent voltages
Improved memory frequency margin

Three M.2 Slots (up to 64 Gbps)
Prime B660-PLUS D4 offers a total of three 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.

PCIe® 4.0 Slot
Prime B660 motherboards are designed specifically for 12th Gen 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 2x2 Type-C®
Numerous USB ports support high-end rigs loaded with peripherals, including a rear-panel USB Type-C® connector with fast USB 3.2 Gen 2x2 for transfer speeds of up to 20 Gbps.

Thunderbolt™ 4 Support
Prime B660-PLUS D4 features Thunderbolt™ 4 support via an on-board header. With the latest Intel-certified ASUS ThunderboltEX 4 add-on card, it can enable bi-directional speeds of up to 40 Gbps via a single cable. Additionally, this card has a daisy-chain function for multi-display connection and supports up to an 8K resolution display. It also provides up to 100 watts of power for fast-charging devices.

Realtek 2.5 Gb Ethernet
2.5Gb Ethernet reduces CPU overhead and offers faster, smoother data transfer.

CUSTOMIZATION
Prime B660 series adds 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
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-generation 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 a 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
Onboard Q-LED troubleshooting lights let PC DIY builders quickly confirm whether key components—CPU, RAM, graphics card, storage devices—are functioning normally during startup.

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

Reinforced solder points around the PCIe and DIMM pins.

Metal inserts keep graphics cards properly aligned when installed.

Metal side panels feature hooks that firmly latch onto the slot.

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

DRAM Overcurrent Protection
Resettable fuses on board 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
Corrosion-resistant stainless-steel back I/O panels bonded with chromium oxide have a lifespan that's three times longer than ordinary panels.

LANGuard
ASUS LANGuard is a hardware-level networking protection feature that integrates advanced signal-coupling technology and premium anti-EMI surface-mounted capacitors to improve throughput and ensure a more reliable connection.