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
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
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
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 applic ation drives
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 bu ilds 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
Q-LED Core
The Q L ED Core display produces light patterns by power LED during the Power On Self Test (POST) that can help users troubleshoot potential issues.
Technical Specifications
| Brand | Asus |
| Model Name | Prime |
| Model No. | B660M-A D4 |
| CPU Support | Intel® Socket LGA1700 for 13th Gen Intel® Core™ Processors & 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)/5066(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 the Memory QVL (Qualified Vendors Lists). |
| Graphic | 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® 13th & 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 | Total supports 2 x M.2 slots and 4x SATA 6Gb/s ports Intel® 13th & 12th Gen Processors M.2_1 slot (Key M), type 2242/2260/2280 - Intel® 13th & 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. |
| LAN | 1 x Intel® 1Gb Ethernet |
| Audio | 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. |
| USB 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 Intel® 1Gb Ethernet port 3 x Audio jacks 1 x PS/2 Keyboard/Mouse combo port |
| 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 |
| Back I/O Ports | 2 x USB 3.2 Gen 1 ports (2 x Type-A), 2 x USB 2.0 ports (2 x Type-A), 1 x DisplayPort, 1 x D-Sub port, 1 x HDMI port, 1 x Realtek 1Gb Ethernet port, 3 x Audio jacks, 1 x PS/2 Keyboard (purple) port, 1 x PS/2 Mouse (green) port |
| Internal I/O Ports | 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 headers 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 supports 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 |
| Operating System Support | Windows® 11 64-bit, Windows® 10 64-bit |
| Form Factor | mATX Form Factor 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm ) |
| Warranty | 3 Years |
