ASUS PRIME B660M-A D4-CSM/LGA 1700/mATX

* 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. Ethernet 1 x Intel® 1Gb Ethernet ASUS LANGuard USB Rear USB:Total 6 ports 2 x USB 3.2 Gen 2 ports (2 x Type-A ) 4 x USB 2.0 ports (4 x Type-A) Front USB:Total 10 ports 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 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. Back Panel I/O 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 Internal I/O Connectors 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 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 Software Features ASUS Exclusive Software Armoury Crate - AURA Creator - AURA Sync - Fan Xpert 2+ AI Suite 3 - Performance And Power Saving Utility TurboV EVO EPU Digi+ VRM ASUS CPU-Z Norton Anti-virus software (Free Trial version) WinRAR UEFI BIOS ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 - ASUS UEFI BIOS EZ Mode BIOS 128 Mb Flash ROM, UEFI AMI BIOS Manageability WOL by PME, PXE Accessories Cables 2 x SATA 6Gb/s cables Miscellaneous 1 x I/O Shield 1 x M.2 Rubber Package 1 x M.2 SSD screw package Installation Media 1 x Support DVD Documentation 1 x User manual Operating System Windows® 11, Windows® 10 64-bit Form Factor microATX 24.4cm x 24.4cm