Asus Prime B660M-A AC D4 Desktop Motherboard, Intel B660 Chipset, Socket LGA-1700, Intel Optane Memory Ready, Micro ATX

Key Features and Benefits:

• 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.
• 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.
• 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.
• VRM heatsink and thermal pad
  VRM heatsink and thermal pad improve heat transfer from the MOSFETs and chokes for better cooling performance.
• 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.
• 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.
• Two M.2 slots (up to 64 Gbps)
  Prime B660M-A 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.
• PCIe 4.0 slot
  Prime B660 motherboards are designed specifically for 12th Generation Intel Core 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.
• 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.
• 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-gen addressable RGB devices, allowing the software to automatically tailor lighting effects to specific devices. The headers also offer backward-compatibility with existing Aura RGB gear.
• 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.
• 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
  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
  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
  Corrosion-resistant stainless steel back I/O panels bonded with chromium oxide have a lifespan that's three times longer than ordinary panels.