Asus Prime B860M-K-CSM LGA1851 mATX Motherboard (PRIME B860M-K-CSM)

ModelPRIME B860M-K-CSMNews & UpdatesPlease see the updated OS support requirements for the Intel® Core Ultra 200S series below:•Intel® Core Ultra 200S Series: Supports Windows 10 (version 21H2 and later) and Windows 11 (version 22H2 and later).•Intel® Core Ultra 200S Plus Series: Windows 11 (version 25H2 and later) for full compatibility., Please visit our GLOBAL website to check and download the latest updates.CPUSupports Intel® Core™ Ultra Processors (Series 2), LGA1851Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0** Refer to https://www.asus.com/support/download-center/ for CPU support list.** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types.ChipsetIntel® B860 ChipsetMemory2 x DIMM slots, max. 128GB, DDR5Supports up to 8800+MT/s (OC),  Non-ECC, Un-buffered ,Clocked Unbuffered DIMM (CUDIMM)Dual channel memory architectureDIMM FitSupports Intel® Extreme Memory Profile (XMP) memory moduleASUS Enhanced Memory Profile III(AEMPIII) Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. Adjustments will be made based on the specifications of mass-produced memory products available on the market.** Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.Graphics1 x DisplayPort1 x HDMI™ port*  * 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.**** VGA resolution support depends on processors' or graphic cards' resolution.Expansion SlotsIntel® Core™ Ultra Processors (Series 2)1 x PCIe 4.0 x16 slotIntel® B860 Chipset2 x PCIe 4.0 x1 slots- To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.StorageTotal supports 2 x M.2 slots and 4 x SATA 6Gb/s portsIntel® Core™ Ultra Processors (Series 2) M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)Intel® B860 ChipsetM.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.Ethernet1 x Realtek 2.5Gb EthernetASUS LANGuardWireless & BluetoothUSBRear USB (Total 6 ports)1 x USB 10Gbps port (1 x Type-A)2 x USB 5Gbps ports (2 x Type-A)3 x USB 2.0 ports (3 x Type-A)Front USB (Total 7 ports)1 x USB 5Gbps connector (supports USB Type-C®)1 x USB 5Gbps header supports 2 additional USB 5Gbps ports2 x USB 2.0 headers support 4 additional USB 2.0 ports USB Type-C® power delivery output: max. 5V/3A.** USB_E1 port, USB_E2 port, USB_E3 port and USB_E4 port share the bandwidth.AudioRealtek 7.1 Surround Sound High Definition Audio CODEC*- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking- Supports up to 24-Bit/192 kHz playbackAudio 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 Ports1 x USB 10Gbps port (1 x Type-A)2 x USB 5Gbps ports (2 x Type-A)3 x USB 2.0 ports (3 x Type-A)1 x DisplayPort1 x HDMITM port1 x Realtek 2.5Gb Ethernet port3 x Audio jacks1 x PS/2 Keyboard/Mouse combo portInternal I/O ConnectorsFan and Cooling Related1 x 4-pin CPU Fan header2 x 4-pin Chassis Fan headersPower Related1 x 24-pin Main Power connector1 x 8-pin +12V CPU Power connectorStorage Related2 x M.2 slots (Key M)4 x SATA 6Gb/s portsUSB1 x USB 5Gbps connector (supports USB Type-C® )1 x USB 5Gbps header supports 2 additional USB 5Gbps ports2 x USB 2.0 headers support 4 additional USB 2.0 portsMiscellaneous2 x Addressable Gen2 headers1 x Aura RGB header1 x Clear CMOS header1 x COM Port header1 x Front Panel Audio header (F_AUDIO)1 x S/PDIF Out header1 x SPI TPM header (14-1 pin)1 x 10-1 pin Front Panel System headerSpecial FeaturesASUS 5X PROTECTION III- DIGI+VRM- LANGuard- Overvoltage protection- SafeSlot Core+- Stainless-steel back I/OASUS Q-Design- Q-Dashboard- Q-DIMM- Q-LED Core- Q-SlotASUS Thermal Solution- VRM heatsink designASUS EZ DIY- ProCoolAura Sync- Aura RGB header- Addressable Gen2 headersSoftware FeaturesASUS Exclusive SoftwareArmoury Crate- Aura Sync- Fan Xpert 2+- Power SavingASUS AI AdvisorASUS DriverHubASUS CPU-ZNorton 360 Deluxe (60 Days Free Trial)WinRAR (40 Days Free Trial)UEFI BIOSASUS EZ DIY- ASUS CrashFree BIOS 3- ASUS EZ Flash- ASUS UEFI BIOS EZ Mode- ASUS MyHotkeyRemote Management FeaturesBIOS256(128+128) Mb Flash ROM, UEFI AMI BIOSManageabilityWOL by PME, PXEAccessoriesCables2 x SATA 6Gb/s cablesMiscellaneous1 x I/O shield1 x M.2 anchor packageDocumentation1 x Quick start guide1 x ACC Express activation key cardOperating SystemWindows 11(22H2 & later), Windows 10 64-bit(21H2 & later)Form Factormicro-ATX Form Factor9.6 inch x 8.75 inch (24.4cm x 22.2cm)