Features bull intelreg lga 1700 socket ready for 12th gen intelreg processors bull ultrafast connectivity pcie 4.0 slots, three m.2 slots, rear usb 3.2 gen 2x2 type creg, front usb 3.2 gen 1 type creg, realtek 2.5gb ethernet and thunderbolttrade 4 support bull comprehensive cooling vrm heatsink, m.2 heatsink, pch heatsink, hybrid fan headers and fan xpert 2 bull asus optimem careful routing of traces and vias to preserve signal integrity for improved memory stability asus prime series motherboards are expertly engineered to unleash the full potential of 12th generation intelreg processors. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, prime b660 provides users and pc diy builders 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 performance tweaks 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 mdash a smart setting that creates an extreme energy saving scenario by shutting down unused i o controllers. 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. Memtest 86 this memory testing software is pre installed into the uefi bios and lets you pinpoint memory issues with just one click, without the need for a usb stick or going into the os. It stores the memory report in the bios archives for reference. 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.