Asus PRIME B860M-K Intel LGA1851 M-ATX Motherboard

- Socket LGA1851, Intel B860 Chipset

- Supports Intel Core Ultra (Series 2) Processors

- 2 x DDR5 DIMM Slots, up to 128GB, DDR5-8800+ (OC)

- Supports CUDIMM Memory Modules

- 1 x PCIe 4.0 x16 Slot

- 2 x PCIe 4.0 x1 Slots

- 1 x M.2 PCIe 5.0 NVMe Slot

- 1 x M.2 PCIe 4.0 NVMe Slot

- 4 x SATA Ports with RAID 0/1/5/10

- 2.5Gbps LAN

- 1 x DisplayPort 1.4, 1 x HDMI 2.1

- 1 x Rear USB Type-C 20Gb/s

- 2 x Rear USB Type-A 10Gb/s, 1 x Rear USB Type-A 5Gb/s

- 3 x Rear USB 2.0/1.1

- 1 x PS/2 Keyboard/Mouse Port

- 3 x Rear Audio Jacks

- 1 x ARGB Gen2 Header

- Form Factor: Micro-ATX

- 3 Year Warranty

CPU

Intel Socket LGA1851 for Intel Core Ultra Processors (Series 2)

Supports Intel Turbo Boost Technology 2.0 and Intel Turbo Boost Max Technology 3.0

Chipset

Intel B860 Express 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)

Onboard Graphics

Integrated Graphics Processor-Intel HD Graphics support:

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.

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

A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

Audio Features

Audio Shielding

Premium audio capacitors

Dedicated audio PCB layers

LAN

1 x Realtek 2.5Gb Ethernet

ASUS LANGuard

Wireless Communication Module None

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 Interface

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

4 x SATA 6Gb/s ports

Intel Rapid Storage Technology supports SATA RAID 0/1/5/10.

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)

USB_E1 port, USB_E2 port, USB_E3 port and USB_E4 port share the bandwidth.

Front USB (Total 7 ports)

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

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

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_E1 port, USB_E2 port, USB_E3 port and USB_E4 port share the bandwidth.

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

Back Panel Connectors

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

I/O Controller

Not Specified

H/W Monitoring

Voltage detection

Temperature detection

Fan speed detection

Fan fail warning

Fan speed control

BIOS

256(128+128) Mb Flash ROM, UEFI AMI BIOS

Unique 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

Bundled 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

Operating System

Support for Windows 11 64-bit

Form Factor

Micro ATX Form Factor, 24.4cm x 22.2cm