ASUS PRIME B860M-A-CSM Micro-ATX LGA 1851 Motherboard
- M-ATX Form Factor
- Intel B860 Chipset
- LGA 1851 Socket
- 4 x Dual-Channel DDR5 Slots
- 4 x SATA 6Gb/s | 2 x M.2
- PCIe 5.0 x16 | PCIe 4.0 x16 & x1

ASUS PRIME B860M-A-CSM Micro-ATX LGA 1851 Motherboard
Feature
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-A-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 Control Center Express
Optimize IT endpoint management
Designed to assist IT staff in monitoring and controlling devices within their corporate networks, and facilitate inventory checking in multiple locations remotely.

Automate IT maintenance
Allows IT staff to schedule automatic updates of the latest BIOS, software and utilities to specific or all devices at off-peak times, enhancing system stability and IT operational flexibility.

Securely manage all of endpoints
Securely manage endpoint configuration, portable storage access and PC software applications by enabling them to create grouping rules on individual devices.

Performance
AI Solutions

AI Advisor
ASUS AI Advisor allows users to explore the functionality and advanced features of ASUS motherboards in a simple and straightforward way.
Performance
Robust power design

Enhanced Memory & Storage Performance
AEMP III for Ultimate DDR5 Performance

DIMM Fit

Two M.2 slots (up to 128Gbps)

ASUS Fan Xpert 2+

Cooler compatibility
Flexibility
Empowering connections
USB 20Gbps port

PCIe 5.0 s​​​​lot
Customization
Personalization

UEFI BIOS
The UEFI interface delivers easy-to-use configuration options for PC beginners, and advanced features for veterans.
ASUS DriverHub
Simplify driver management with automatic detection, one-click installation and update for smooth, efficient system performance.
SPECIFICATIONS
Model | PRIME B860M-A-CSM |
CPU | Supports Intel® Core™ Ultra Processors (Series 2), LGA1851 |
 | Supports Intel® Turbo Boost Technology 2.0 and Turbo Boost Max Technology 3.0 |
Chipset | Intel® B860 Chipset |
Memory | 4 x DIMM slots, max. 256GB DDR5 |
 | Supports up to 8666+ MT/s (OC), Non-ECC, Un-buffered DIMM |
 | Dual Channel Memory Architecture |
 | Intel® XMP and ASUS AEMPIII support |
Graphics | 2 x DisplayPort (4K@60Hz, DisplayPort 1.4) |
 | 1 x HDMI™ (4K@60Hz, HDMI 2.1) |
 | VGA resolution depends on the CPU or discrete graphics card |
Expansion Slots | Intel® Core™ Ultra Processors: 1 x PCIe 5.0 x16 slot |
 | Intel® B860 Chipset: 1 x PCIe 4.0 x16 slot (x4 mode), 1 x PCIe 4.0 x1 slot |
Storage | 2 x M.2 slots (1 PCIe 5.0 x4, 1 PCIe 4.0 x4) |
 | 4 x SATA 6Gb/s ports |
 | Intel® Rapid Storage Technology supports SATA RAID 0/1/5/10 |
Ethernet | 1 x Realtek 2.5Gb Ethernet with ASUS LANGuard |
USB (Rear) | 1 x USB 20Gbps Type-C®, 1 x USB 10Gbps Type-A, 2 x USB 5Gbps Type-A, 4 x USB 2.0 Type-A |
USB (Front) | 1 x USB 10Gbps Type-C® connector, 1 x USB 5Gbps header (2 ports), 1 x USB 2.0 header (2 ports) |
Audio | Realtek 7.1 Surround Sound High Definition Audio CODEC |
 | Supports Jack-detection, Multi-streaming, Front Panel Jack-retasking |
 | Premium Audio Features: Audio Shielding, Premium Capacitors, Dedicated PCB Layers |
Back Panel I/O Ports | 1 x USB 20Gbps Type-C®, 1 x USB 10Gbps Type-A, 2 x USB 5Gbps Type-A, 4 x USB 2.0 Type-A |
 | 2 x DisplayPort, 1 x HDMI™, 1 x Realtek 2.5Gb Ethernet Port |
 | 3 x Audio Jacks |
Internal I/O Connectors | 1 x 24-pin Main Power Connector, 1 x 8-pin +12V CPU Power Connector |
 | 2 x M.2 slots, 4 x SATA 6Gb/s ports |
 | 1 x USB 10Gbps Type-C® connector, 1 x USB 5Gbps header (2 ports), 1 x USB 2.0 header (2 ports) |
 | 3 x Addressable Gen2 headers, 1 x Aura RGB header, 1 x Thunderbolt™ (USB4®) header |
Cooling Features | 1 x 4-pin CPU Fan header, 1 x 4-pin CPU OPT Fan header, 1 x 4-pin AIO Pump header |
 | 3 x 4-pin Chassis Fan headers |
Special Features | ASUS 5X PROTECTION III (DIGI+VRM, LANGuard, Overvoltage Protection, SafeSlot) |
 | ASUS Q-Design (Q-Dashboard, Q-DIMM, Q-LED Core, Q-Slot) |
 | ASUS Aura Sync with Addressable Gen2 headers |
 | M.2 and VRM Heatsink |
 | Pre-mounted I/O Shield |
Software | Armoury Crate (Aura Sync, Aura Creator, Fan Xpert 2+, Power Saving) |
 | ASUS DriverHub, ASUS CPU-Z, Norton 360 Deluxe (60 Days Free Trial), WinRAR (40 Days Free Trial) |
BIOS | 256Mb Flash ROM, UEFI AMI BIOS |
 | ASUS EZ DIY features: CrashFree BIOS 3, EZ Flash, UEFI BIOS EZ Mode |
Accessories | 2 x SATA 6Gb/s cables, 1 x M.2 rubber package, 1 x M.2 SSD screw package |
 | 1 x ACC Express Activation Key Card, 1 x Quick Start Guide |
Operating System | Windows 11 (22H2 & later), Windows 10 64-bit (21H2 & later) |
Form Factor | Micro-ATX (9.6" x 9.6" / 24.4cm x 24.4cm) |
Weight | 1 kg |
---|---|
Brand | Asus |
Product Type | Gaming |
color | Black |
Motherboard Size | mATX |
Memory Series | DDR5 |
Chipset | B860 |
Socket | LGA 1851 |
Platform | Intel |
EAN Code | 4711387819869 |
Warranty | 3 Years |
Q & A
