ASUS PRIME B860M-K – Intel LGA1851 DDR5 Micro-ATX Motherboard, 2 DIMM Slots, PCIe 4.0 x16, 2× M.2, 4 SATA, 2.5GbE, 7.1 HD Audio, ASUS 5X Protection, Aura Sync

Model

• PRIME B860M-K

CPU

• Supports: Intel® Core™ Ultra Processors (Series 2), LGA1851

• Supports: Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0

Chipset

• Intel® B860 Chipset

Memory

• 2 x DIMM slots, max. 128GB, DDR5

• Supports up to 8800+MT/s (OC), Non-ECC, Un-buffered, Clocked Unbuffered DIMM (CUDIMM)

• Dual channel memory architecture

• DIMM Fit

• Supports Intel® Extreme Memory Profile (XMP) memory module

• ASUS Enhanced Memory Profile III (AEMPIII)

• Non-ECC, un-buffered DDR5 memory supports On-Die ECC function

Graphics

• 1 x DisplayPort: Supports max. 4K@60Hz as specified in DisplayPort 1.4

• 1 x HDMI™ port: Supports 4K@60Hz as specified in HDMI 2.1

Expansion Slots

• Intel® Core™ Ultra Processors (Series 2):

  • 1 x PCIe 4.0 x16 slot

• Intel® B860 Chipset:

  • 2 x PCIe 4.0 x1 slots

Storage

• Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports

• Intel® Core™ Ultra Processors (Series 2):

  • M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)

• Intel® B860 Chipset:

  • M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)

  • 4 x SATA 6Gb/s ports

RAID

• Intel® Rapid Storage Technology: Supports SATA RAID 0/1/5/10

Ethernet

• 1 x Realtek 2.5Gb Ethernet

• ASUS LANGuard

USB

• Rear 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 ports

  • 2 x USB 2.0 headers support 4 additional USB 2.0 ports

  • USB Type-C® power delivery output: max. 5V/3A

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

Back Panel I/O 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)

• 1 x DisplayPort

• 1 x HDMI™ port

• 1 x Realtek 2.5Gb 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

  • 2 x 4-pin Chassis Fan headers

• Power Related:

  • 1 x 24-pin Main Power connector

  • 1 x 8-pin +12V CPU Power connector

• Storage Related:

  • 2 x M.2 slots (Key M)

  • 4 x SATA 6Gb/s ports

• USB:

  • 1 x USB 5Gbps connector (supports USB Type-C®)

  • 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports

  • 2 x USB 2.0 headers support 4 additional USB 2.0 ports

• Miscellaneous:

  • 2 x Addressable Gen2 headers

  • 1 x Aura RGB header

  • 1 x Clear CMOS header

  • 1 x COM Port header

  • 1 x Front Panel Audio header (F_AUDIO)

  • 1 x S/PDIF Out header

  • 1 x SPI TPM header (14-1 pin)

  • 1 x 10-1 pin Front Panel System header

Special Features

• ASUS 5X PROTECTION III:

  • DIGI+VRM

  • LANGuard

  • Overvoltage protection

  • SafeSlot Core+

  • Stainless-steel back I/O

• ASUS Q-Design:

  • Q-Dashboard

  • Q-DIMM

  • Q-LED Core

  • Q-Slot

• ASUS Thermal Solution:

  • VRM heatsink design

• ASUS EZ DIY:

  • ProCool

• Aura Sync:

  • Aura RGB header

  • Addressable Gen2 headers

Software Features

• ASUS Exclusive Software:

  • Armoury Crate:

    • Aura Sync

    • Fan Xpert 2+

    • Power Saving

  • ASUS AI Advisor

  • ASUS DriverHub

  • ASUS CPU-Z

  • Norton 360 Deluxe (60 Days Free Trial)

  • WinRAR (40 Days Free Trial)

• UEFI BIOS:

  • ASUS EZ DIY:

    • ASUS CrashFree BIOS 3

    • ASUS EZ Flash

    • ASUS UEFI BIOS EZ Mode

    • ASUS MyHotkey

BIOS

• 256 (128+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 anchor package

• Documentation:

  • 1 x Quick start guide

Operating System

• Windows 11 (22H2 & later), Windows 10 64-bit (21H2 & later)

Form Factor

• micro-ATX Form Factor

• 9.6 inch x 8.75 inch (24.4 cm x 22.2 cm)