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
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Overview
Specs
Reviews
Learn more about the ASUS 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 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
September 12, 2025
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Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.