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Brand: ASUS
SKU: PCHSM-12389
MPN: 90MB1K00-M0EAYC

Key Features

  • Micro ATX Form Factor
  • Intel B860 Chipset
  • Socket 1851
  • DDR5 (Max: 192GB / 4 slots)
  • 2 x M.2 & 8 x USB & 4 x SATA
  • HDMI and Display Port

Shipping & Delivery

  • Standard Delivery

Our courier will deliver to the specified address

5-7 Working Days

From £4.99

  • Express Delivery

DHL courier will deliver to the specified address

2-3 Working Days

From £9.99

  • Free 30-Day returns

Asus PRIME B860M-A-CSM Micro ATX Motherboard for Intel LGA1851 CPUs

Original price was: £158.42.Current price is: £154.90. INC VAT

In stock

In stock

Brand: ASUS
SKU: PCHSM-12389
MPN: 90MB1K00-M0EAYC

Key Features

  • Micro ATX Form Factor
  • Intel B860 Chipset
  • Socket 1851
  • DDR5 (Max: 192GB / 4 slots)
  • 2 x M.2 & 8 x USB & 4 x SATA
  • HDMI and Display Port

Shipping & Delivery

  • Standard Delivery

Our courier will deliver to the specified address

5-7 Working Days

From £4.99

  • Express Delivery

DHL courier will deliver to the specified address

2-3 Working Days

From £9.99

  • Free 30-Day returns

Description

ASUS PRIME B860M-A-CSM Built for AI-Ready Business Performance

Engineered for Next-Gen Performance
The ASUS PRIME B860M-A-CSM is a micro-ATX motherboard built to take full advantage of Intel® Core™ Ultra (Series 2) processors. Featuring the Intel B860 chipset and LGA 1851 socket, it brings next-generation performance with DDR5 memory support, PCIe 5.0 graphics capabilities, and high-speed connectivity. With ASUS-exclusive features like Fan Xpert 2+, Armoury Crate, and Q-LED Core, it streamlines everything from system cooling to diagnostics—making it an ideal foundation for mainstream desktops or professional setups.

Business-Class Stability and Control
Designed under the ASUS Corporate Stable Model (CSM) initiative, this motherboard provides enterprise-grade stability with up to 36 months of product lifecycle support. It comes bundled with ASUS Control Center Express—IT-grade management software for remote monitoring, deployment, and automation. IT departments can efficiently manage large-scale systems while ensuring optimal performance and security thanks to advanced diagnostics, BIOS FlashBack support, and real-time endpoint control.

Connectivity and Expansion for Modern Demands
Whether it’s AI-powered workloads, data-intensive tasks, or high-speed networking, the PRIME B860M-A-CSM is ready. With dual M.2 slots (PCIe 5.0 & 4.0), Realtek 2.5Gb Ethernet, and both USB 20Gbps and USB 10Gbps Type-C® connectivity, you’re prepared for anything. It also includes three Display outputs (HDMI and Dual DisplayPort), addressable Gen2 RGB headers for personalization, and SafeSlot reinforcement to securely handle powerful GPUs. It’s DIY-friendly, AI-ready, and tailored for tomorrow’s business and enthusiast desktops.

Specification Details
Motherboard Type Desktop
Form Factor Micro ATX
Socket Intel LGA 1851
Chipset Intel B860
CPU Support View Supported CPUs
Memory Type DDR5 (Dual Channel, Non-ECC, Un-buffered CUDIMM)
Memory Slots 4 x DIMM
Memory Speed Up to 8666+ MT/s (OC)
Max Memory 256GB
Graphics Output 1 x HDMI, 2 x DisplayPort (depends on CPU)
Expansion Slots 1 x PCIe 5.0 x16, 1 x PCIe 4.0 x16 (x4), 1 x PCIe 4.0 x1
Storage 4 x SATA 6Gb/s, 2 x M.2 (PCIe 5.0 x4 & PCIe 4.0 x4)
RAID Support RAID 0/1/5/10 (SATA via Intel RST)
Networking Realtek 2.5Gb Ethernet
Audio Realtek 7.1 Surround HD Audio CODEC
Rear USB Ports 1 x USB 20Gbps Type-C, 1 x USB 10Gbps Type-A, 2 x USB 5Gbps Type-A, 4 x USB 2.0
Front USB Ports 1 x USB 10Gbps Type-C, 2 x USB 5Gbps, 2 x USB 2.0
Back Panel I/O 1 x USB 20Gbps Type-C, 1 x USB 10Gbps Type-A, 2 x USB 5Gbps Type-A, 4 x USB 2.0, 2 x Display Port, 1 x HDMI, 1 x 2.5Gb LAN, 3 x Audio jacks
Internal Connectors 1 x 24-pin Main, 1 x 8-pin CPU +12V, 1 x CPU Fan, 1 x CPU OPT, 1 x AIO Pump, 3 x Chassis Fan, 2 x M.2 (Key M), 4 x SATA, 1 x USB 10Gbps Type-C, 1 x USB 5Gbps, 1 x USB 2.0, 3 x Addressable Gen2 RGB, 1 x Aura RGB, 1 x COM, 1 x Clear CMOS, 1 x Front Panel Audio, 1 x S/PDIF Out, 1 x Thunderbolt (USB4), 1 x SPI TPM
Accessories 2 x SATA Cables, 1 x M.2 Rubber Package, 1 x M.2 Screw Package, 1 x ACC Express Key Card, 1 x Quick Start Guide
Package Retail
Package Weight 1.36 kg
Warranty 3 Years

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