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Overview

Range/Series Overview


IMPORTANT: This Range/Series overview section describes the range of which this product belongs. Features of different versions might be mentioned and may not apply to the specific product on this page. Please view Specs for specification of product.

The ASUS PRIME B860M-A-CSM motherboard is engineered for high-performance computing with its versatile features and robust architecture. It supports Intel Core Ultra processors and is equipped with four DIMM slots to accommodate DDR5 SDRAM, ensuring ample memory capacity for demanding tasks. The advanced connectivity options, including multiple USB 3.2 ports and HDMI/DisplayPort outputs, provide quick data transfer and seamless video output for a rich multimedia experience.

This micro ATX motherboard features an array of protective technologies such as ASUS 5X Protection III, which includes safeguards against overvoltage and ESD, enhancing system reliability. The inclusion of M.2 heatsinks and VRM heatsink design promotes efficient thermal management, allowing for optimal performance under heavy loads. Whether building a gaming rig or a powerful workstation, the ASUS PRIME B860M-A-CSM delivers versatility and durability for modern computing demands.


Features Summary

  • Robust connectivity options
    The motherboard offers a comprehensive array of connectivity options, including two USB-C 3.2 Gen 2x2 ports, four USB 2.0 ports, and multiple video outputs such as HDMI and DisplayPort, ensuring seamless integration with various peripherals.
  • Efficient thermal management
    The ASUS PRIME B860M-A-CSM is designed with M.2 heatsinks and VRM heatsink design that enhance airflow and cooling efficiency, allowing the system to maintain optimal performance under heavy workloads.
  • Advanced power design
    Featuring a 7+1+1+1 phase power design, this motherboard provides stable power delivery for overclocking and high-performance tasks, accompanied by ASUS DIGI+ VRM technology for improved efficiency.
  • Secure system protection
    The motherboard integrates ASUS 5X Protection III, which includes overvoltage protection, ESD Guards, and a stainless steel back I/O, ensuring enhanced durability and reliability for your system.
  • User-friendly BIOS features
    The AMI BIOS with UEFI support includes ASUS EZ Flash and EZ Mode, simplifying the process of BIOS updates and configuration for users, making it accessible for all skill levels.

Specification Summary

Product Description
ASUS PRIME B860M-A-CSM - motherboard - micro ATX - LGA1851 Socket - B860
Product Type
Motherboard - micro ATX
Chipset Type
Intel B860
Processor Socket
1 x LGA1851 Socket
Compatible Processors
(supports Intel Core Ultra processors (Series 2))
Max RAM Size
256 GB
RAM Supported
4 DIMM slots - DDR5, non-ECC, on-die ECC, unbuffered
Storage Ports
4 x SATA-600 (RAID), 2 x M.2
USB / FireWire Ports
1 x USB-C 3.2 Gen 2x2 + 1 x USB 3.2 Gen 2 + 2 x USB 3.2 Gen 1 + 4 x USB 2.0 + (1 x USB-C 3.2 Gen 2 + 2 x USB 3.2 Gen 1 + 2 x USB 2.0 via headers)
Audio
HD Audio (8-channel)
Pricing Type
ASUS Corporate Stable Model (CSM)

Specifications

EAN / GTIN:
4711387819869
General
Product Type
Motherboard - micro ATX
Chipset Type
Intel B860
Processor Socket
LGA1851 Socket
Max Processors Qty
1
Compatible Processors
(supports Intel Core Ultra processors (Series 2))
Supported RAM
Max Size
256 GB
Technology
DDR5
Bus Clock
8666 MT/s (O.C.)
Supported RAM Integrity Check
Non-ECC, on-die ECC
Registered or Buffered
Unbuffered
Features
Intel Extreme Memory Profiles (XMP), dual channel memory architecture
Audio
Type
HD Audio (8-channel)
Compliant Standards
High Definition Audio
Expansion / Connectivity
Expansion Slots
1 x CPU ¦ 4 x DIMM 288-pin ¦ 1 x PCIe 5.0 x16 ¦ 1 x PCIe 4.0 x16 (x4 mode) ¦ 1 x PCIe 4.0 x1 ¦ 2 x M.2 socket (2242/2260/2280 M.2 Key M slot)
Storage Interfaces
SATA-600 -connectors: 4 x 7pin Serial ATA - RAID 0 / RAID 1 / RAID 10 / RAID 5 ¦ PCIe 4.0 -connectors: 1 x M.2 ¦ PCIe 5.0 -connectors: 1 x M.2
Interfaces
1 x HDMI ¦ 2 x DisplayPort ¦ 2 x USB 3.2 Gen 1 ¦ 4 x USB 2.0 ¦ 1 x USB 3.2 Gen 2 ¦ 1 x USB-C 3.2 Gen2x2 ¦ 2 x aerial ¦ 1 x microphone - mini-jack ¦ 1 x audio line-in - mini-jack ¦ 1 x audio line-out - mini-jack ¦ 1 x audio line-out - mini-jack
Internal Interfaces
1 x USB-C 3.2 Gen 2 - header ¦ 2 x USB 3.2 Gen 1 - header ¦ 2 x USB 2.0 - header ¦ 1 x serial - header ¦ 1 x audio - header ¦ 1 x SPDIF out - header ¦ 1 x Thunderbolt 4 - header ¦ 1 x SPI - header
Power Connectors
24-pin main power connector, 8-pin ATX12V connector
Features
BIOS Type
AMI
BIOS Features
UEFI BIOS, ASUS EZ Flash, ASUS UEFI BIOS EZ Mode
Sleep / Wake Up
Wake on LAN (WOL), wake on PME
Hardware Features
Preboot eXecution Environment (PXE), ASUS 5X Protection III, ASUS DIGI+ VRM, ESD Guards, LANGuard, overvoltage protection, ASUS SafeSlot Core, ASUS Stainless Steel Back I/O, ASUS Q-Design, Q-Antenna, Q-Dashboard, Q-DIMM, Q-LED Core, Q-Slot, M.2 heatsink, VRM heatsink design, ASUS EZ DIY, ASUS ProCool, 7+1+1+1 Phase Power Design, ASUS Enhanced Memory Profile (AEMP) III, ASUS Aura Sync, Dr.MOS MOSFET, 6 Layer PCB, ASUS Fan Xpert 2+
Miscellaneous
Included Accessories
1 x M.2 rubber package, M.2 screw package, ACC Express Activation Key Card
Cables Included
2 x Serial ATA cable
Software Included
Armoury Crate, ASUS CPU-Z, ASUS DriverHub, ASUS Fan Xpert 2+, ASUS GlideX, Norton 360 Deluxe (60 days trial), WinRAR (40 days trial)
Width
24.4 cm
Depth
24.4 cm
Pricing Type
ASUS Corporate Stable Model (CSM)

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