Asus PRIME B860M-K-CSM DDR5 Intel Motherboard

Key Features

Prime B860M-K-CSM

ASUS PRIME series motherboards are expertly engineered to unleash the full potential of the latest Intel® Core™ Ultra Processors (Series 2). Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, the PRIME B860M-K-CSM motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications.

ASUS Corporate Stable Model

ASUS Corporate Stable Model (CSM) is a commercial program designed to provide stable and reliable motherboards. Offering up to 36-month product lifecycle support and 6-month end-of-life notice to allow sufficient lead times for your organization to get ready for product transitions. Each purchase of an ASUS CSM motherboard comes with ASUS Control Center Express - server-grade IT management software.

ASUS Control Center Express

ASUS Control Center Express is an integrated IT monitoring and management software designed to deploy faster, simplify IT operations and improve productivity with comprehensive control and user-friendly functions. ASUS Control Center Express is compatible with over 100 ASUS motherboards to provide a high-quality, TCO-optimized solution for your business needs.

AI Solutions

ASUS AI Solutions include AI Advisor as your technical expert with expertise in PC performance.

Digital Power Design

Stable power is crucial for maximizing the performance of Intel® Core™ Ultra Processors (Series 2).The PRIME B860M-K-CSM features an 6+1+1+1 phase design with discrete MOSFETs,ensuring efficient and stable power delivery for Intel® processors plus steady performance for day-to-day use.

AEMP III for Ultimate DDR5 Performance

ASUS Enhanced Memory Profile III (AEMP III) is an advanced firmware feature that empowers users to achieve unparalleled memory performance with cutting-edge CUDIMM memory. Through a two-phase comprehensive tuning process, AEMP III first optimizes the clock driver and then the memory frequency. This results in the best balance between performance and stability, even at cutting-edge speeds of DDR5-7600 or higher.2

DIMM Fit

DIMM Fit is an ASUS-exclusive BIOS feature that precisely analyzes individual memory modules to optimize performance and pinpoint potential issues. This offers peak efficiency, compatibility, and system stability. Whether you are an overclocker seeking ultimate performance, a competitor pursuing the most responsive gameplay, or a content creator prioritizing rock-solid stability, DIMM Fit provides optimizations tailored to your needs and your hardware configuration.

Two M.2 slots (up to 128Gbps)

PRIME B860M-K-CSM offers a total of two M.2 slots, including one that supports data-transfer speeds of up to 128Gbps via PCIe 5.0, one that supports 64Gbps via PCIe 4.0. This enables quicker boot-up and app load times with OS or application drives.

Cooler by design

The PRIME B860M-K-CSM motherboard is engineered with multiple onboard heatsinks and an array of hybrid fan headers to help ensure your rig stays cool and stable under intense workloads.

PRIME B860M-K-CSM front view.

ASUS Fan Xpert 2+

ASUS Fan Xpert 2+ software provides comprehensive control over fans. An Auto-Tuning mode intelligently configures all parameters with a single click. There’s also an Extreme Quiet mode that reduces chassis fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS.

Empowering connections

This motherboard offers a versatile range of connectivity, including support for PCIe 5.0 M.2, PCIe 4.0 slot and an arsenal of USB ports which includes Type-C® connection.

Realtek 2.5Gb Ethernet

Realtek 2.5Gb Ethernet reduces CPU overhead and offers exceptionally high TCP and UDP throughput for faster, smoother data transfers.

USB 5Gbps Type-C®

A batch of USB ports support high-end rigs loaded with peripherals, including a front USB Type-C® connector with ultrafast USB 5Gbps for transmission speeds of up to 5Gbps.

Personalization

The PRIME B860M-K-CSM enhances the user experience across the board, from simplifying BIOS setting adjustments to offering customizable RGB lighting controls for a uniquely personal system aesthetic.

DIY friendly

The PRIME B860M-K-CSM motherboard features EZ PC DIY innovations that simplify and speed up the PC building process, making DIY easy and convenient.

SafeSlot Core+

SafeSlot Core+ is a one-piece stainless-steel brace that shields the slot to protect it from damage. The metal cover is tightly secured to the slot with hooks, and the entire assembly is firmly anchored to the PCB with strengthened solder points to provide a secure foundation for heavyweight graphics cards.

Specification

Model : PRIME B860M-K-CSM

Chipset : Intel® B860 Chipset

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

Manageability : WOL by PME, PXE

Operating System : Windows 11(22H2 & later), Windows 10 64-bit(21H2 & later)

CPU

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

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

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)

Graphics

1 x DisplayPort

1 x HDMI™ port

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

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

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

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 HDMITM 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

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

1 x ACC Express activation key card

Form Factor

micro-ATX Form Factor

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