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Main image of ASUS PRO B860M-CT-CSM Intel B860 (LGA 1851) mATX Motherboard, PCIe 5.0, DDR5, 2x M.2, Intel 1G LAN, 2x DP, HDMI, USB Type-C, TPM IC Onboard with Enhanced Security, Reliability and Manageability

Alt view image 2 of 7 - ASUS PRO B860M-CT-CSM Intel B860 (LGA 1851) mATX Motherboard, PCIe 5.0, DDR5, 2x M.2, Intel 1G LAN, 2x DP, HDMI, USB Type-C, TPM IC Onboard with Enhanced Security, Reliability and Manageability

Alt view image 3 of 7 - ASUS PRO B860M-CT-CSM Intel B860 (LGA 1851) mATX Motherboard, PCIe 5.0, DDR5, 2x M.2, Intel 1G LAN, 2x DP, HDMI, USB Type-C, TPM IC Onboard with Enhanced Security, Reliability and Manageability

Alt view image 4 of 7 - ASUS PRO B860M-CT-CSM Intel B860 (LGA 1851) mATX Motherboard, PCIe 5.0, DDR5, 2x M.2, Intel 1G LAN, 2x DP, HDMI, USB Type-C, TPM IC Onboard with Enhanced Security, Reliability and Manageability

Alt view image 5 of 7 - ASUS PRO B860M-CT-CSM Intel B860 (LGA 1851) mATX Motherboard, PCIe 5.0, DDR5, 2x M.2, Intel 1G LAN, 2x DP, HDMI, USB Type-C, TPM IC Onboard with Enhanced Security, Reliability and Manageability

Alt view image 6 of 7 - ASUS PRO B860M-CT-CSM Intel B860 (LGA 1851) mATX Motherboard, PCIe 5.0, DDR5, 2x M.2, Intel 1G LAN, 2x DP, HDMI, USB Type-C, TPM IC Onboard with Enhanced Security, Reliability and Manageability

Alt view image 7 of 7 - ASUS PRO B860M-CT-CSM Intel B860 (LGA 1851) mATX Motherboard, PCIe 5.0, DDR5, 2x M.2, Intel 1G LAN, 2x DP, HDMI, USB Type-C, TPM IC Onboard with Enhanced Security, Reliability and Manageability

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ASUS PRO B860M-CT-CSM Intel B860 (LGA 1851) mATX Motherboard, PCIe 5.0, DDR5, 2x M.2, Intel 1G LAN, 2x DP, HDMI, USB Type-C, TPM IC Onboard with Enhanced Security, Reliability and Manageability

Item #: 9B-13-119-749
Mfr. Part #: PRO B860M-CT-CSM
UNSPSC: 43201513

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Ready for Advanced AI PCs: Designed for the future of AI computing, with the power and connectivity needed for demanding AI applications
Intel LGA 1851 Socket: Ready for Intel Core Ultra Processors (Series 2)
ASUS CSM Program: A stable motherboard supply, end-of-life notifications, and IT software for business motherboards
ASUS Control Center Express: Integrated IT monitoring and management software that simplifies enterprise-level system administration
Enhanced System Security: A self-recovering BIOS, TPM to safeguard PCs and NIST SP 800-193 compliance
Consistent and Reliable Performance: High-quality components and rigorous testing to help ensure durability in harsh environments
Efficient Management and Customization: An event log and commercial BIOS kit to enable easy maintenance
Better Serviceability: Q-LED Core diagnostic display and COM debug header to facilitate building and support processes
Ultrafast Connectivity: PCIe 5.0, DDR5, rear and front USB 10Gbps Type-C

Overview

Specs

Reviews

PRO B860M-CT-CSM

Model
Brand	ASUS
Model	PRO B860M-CT-CSM
Part Number	90MB1MBM-MVAAYC

Supported CPU
CPU Socket Type	LGA 1851
CPU Type	Intel Core Ultra Processors (Series 2)

Chipsets
Chipset	Intel B860

Memory
Number of Memory Slots	4x288pin (DDR5)
Memory Standard	Supports up to 8666+ MT/s(OC)
Maximum Memory Supported	256GB
Channel Supported	Dual Channel
Memory Performance Profile	Intel XMP 3.0
Memory Feature	Supports up to 8666+ 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 (AEMP III)

Expansion Slots
PCI Express 5.0 x16	1 x PCI Express 5.0 x16
PCI Express 4.0 x16	1 x PCIe 4.0 x16 slot (supports x4 mode)
PCI Express x1	1 x PCIe 4.0 x1 slot

Storage Devices
Serial ATA (SATA)	4 x SATA 6Gb/s
M.2	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 modes)
SATA RAID	Intel Rapid Storage Technology supports SATA RAID 0/1/5/10.

Onboard Audio
Audio Channels	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.

Onboard LAN
Max LAN Speed	1Gbps
Wireless LAN	M.2 slot only 2230 (Key E, CNVi & PCIe)* *Wi-Fi module is sold separately.

Rear Panel Ports
Back I/O Ports	1 x USB 10Gbps port (1 x USB Type-C) 1 x USB 10Gbps port (1 x Type-A) 2 x USB 2.0 ports (2 x Type-A ) 2 x DisplayPort 1 x HDMI port 1 x PS/2 keyboard (purple) port 1 x PS/2 mouse (green) port 1 x Intel 1Gb Ethernet 3 x Audio jacks

Internal I/O Connectors
Onboard USB	1 x USB 10Gbps 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
Other Connectors	Fan and Cooling Related 1 x 4-pin CPU Fan header 2 x 4-pin Chassis Fan headers Miscellaneous 1 x Clear CMOS header 1 x Chassis Intrude header 2 x COM Port headers 1 x Front Panel Audio header (AAFP) 1 x COM debug header 1 x LPT header 1 x Mono-Out Audio header (with Amp IC) 1 x M.2 slot (Key E) 1 x Speaker header 1 x SMBUS header 1 x 10-1 pin Front Panel System header 1 x SPI header(14-5 pin)

Software Feature
BIOS Feature	256 (128+128) Mb Flash ROM, UEFI AMI BIOS
Software	ASUS Exclusive Software ASUS DriverHub UEFI BIOS ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash - ASUS MyHotkey
Windows 11	Windows 11 (22H2 & later), Windows 10 64-bit (21H2 & later)

Physical Spec
Form Factor	Micro ATX
Dimensions (W x L)	9.6" x 9.6"
Power Pin	1 x 24-pin Main Power connector 1 x 8-pin +12V CPU Power connector

Features
Features	ASUS Q-Design - Q-LED Core - Q-Slot ASUS Thermal Solution - Aluminum heatsink design ASUS EZ DIY - Box headers - Dual DIMM clips - SafeSlot Bespoke Motherboard Design & Business Focused Features - ASUS Self-Recovering BIOS - ASUS Event Log - ASUS Commercial BIOS Kit* - Anti-moisture coating - BIOS EZ Deploy - 24/7 reliability - Overcurrent protection TXT support TPM IC onboard * Please contact local FAE for Commercial BIOS kit.

Packaging
Package Contents	Cables 2 x SATA 6Gb/s cables Miscellaneous 1 x Screw package for M.2 SSD 1 x I/O Shield 1 x M.2 Key E screw package Documentation 1 x ACC Express Activation Key Card 1 x Quick start guide

Additional Information
First Listed on Newegg	August 22, 2025

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Limited Warranty period (parts): 3 years
Limited Warranty period (labor): 3 years

Return Policies

Return for refund within: 30 days
Return for replacement within: 30 days
Restocking Fee: Yes
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ASUS PRO B860M-CT-CSM Intel B860 (LGA 1851) mATX Motherboard, PCIe 5.0, DDR5, 2x M.2, Intel 1G LAN, 2x DP, HDMI, USB Type-C, TPM IC Onboard with Enhanced Security, Reliability and Manageability

Learn more about the ASUS PRO B860M-CT-CSM

Customer Reviews of the ASUS PRO B860M-CT-CSM

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Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Item#: 9B-13-119-749

Best Sellers

ASUS PRO B860M-CT-CSM Intel B860 (LGA 1851) mATX Motherboard, PCIe 5.0, DDR5, 2x M.2, Intel 1G LAN, 2x DP, HDMI, USB Type-C, TPM IC Onboard with Enhanced Security, Reliability and Manageability

Learn more about the ASUS PRO B860M-CT-CSM

Customer Reviews of the ASUS PRO B860M-CT-CSM

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info