Features

Overview

The ASUS Prime B660M-A D4 is a feature-rich micro-ATX motherboard designed for 12th to 14th Gen Intel Core processors on the Intel B660 chipset. Combining stable performance, versatile connectivity, and efficient power delivery, it offers an excellent foundation for productivity systems, compact gaming PCs, or general-purpose desktop builds. With DDR4 memory support, PCIe 4.0, and high-speed M.2 storage, this motherboard balances reliability, performance, and value.

Key Features & Specifications

Processor Support

• Supports 12th - 14th Gen Intel Core, Pentium Gold, and Celeron processors

• LGA 1700 CPU socket

• Intel Turbo Boost Technology support (processor-dependent)

Power Design

• 8+1 DrMOS power stages for clean and stable CPU power delivery

• High-quality chokes and capacitors ensure durability and efficiency

• ProCool solid-pin power connectors for better heat dissipation and lower impedance

Memory

• 4 x DDR4 DIMM slots, dual-channel memory architecture

• Supports up to 128GB DDR4 memory

• Memory speeds up to 5333+ MHz (OC)

• Intel XMP 2.0 profile support for quick and stable overclocking

Expansion Slots

• 1 x PCIe 4.0 x16 slot (SafeSlot Core+ reinforced for GPUs)

• 1 x PCIe 3.0 x16 slot (x4 mode)

• 1 x PCIe 3.0 x1 slot for additional expansion

Storage Options

• 2 x M.2 slots (PCIe Gen4 x4) for high-speed NVMe SSDs

• 4 x SATA 6Gb/s ports with RAID 0, 1, 5, and 10 support

• Integrated M.2 heatsink on primary slot to maintain SSD performance

Networking

• Intel 2.5Gb Ethernet for high-speed and reliable wired networking

USB & I/O Connectivity

• Rear I/O:

  • 1 x USB 3.2 Gen 2x2 Type-C (20Gbps)

  • 1 x USB 3.2 Gen 2 Type-A (10Gbps)

  • 2 x USB 3.2 Gen 1 ports (5Gbps)

  • 2 x USB 2.0 ports

• Front panel headers support additional USB 3.2 Gen1 and USB 2.0 ports

• HDMI 2.1 and DisplayPort 1.4 outputs for integrated graphics

Audio

• Realtek 7.1-channel HD Audio Codec

• Premium capacitors for clear and detailed sound

• ASUS Audio Shielding to reduce interference

Cooling & Thermal Design

• Enlarged VRM heatsinks with thermal pads for better heat transfer

• Multiple hybrid fan headers with ASUS Fan Xpert 2+ for precise control

• Optimized circuit design to maintain low operating temperatures under load

BIOS & Software

• ASUS UEFI BIOS with EZ Mode for quick setup and Advanced Mode for detailed tuning

• ASUS Armoury Crate for driver updates, lighting control, and system monitoring

• MyASUS software for diagnostics and system optimization

Form Factor & Aesthetics

• Micro-ATX form factor (24.4 cm x 24.4 cm) for compact builds

• Clean black-and-silver PCB with professional, understated aesthetics

• Reinforced PCIe slots and premium component quality for long-term reliability