Asus PRIME B860-PLUS-CSM LGA 1851 ATX Motherboard

Asus PRIME B860-PLUS-CSM LGA 1851 ATX Motherboard

The ASUS PRIME B860-PLUS-CSM is a high-performance ATX motherboard tailored for productivity users, system integrators, and enthusiasts seeking next-gen performance and durability. Built on the Intel B860 chipset, it supports Intel Core Ultra Processors (Series 2) via the LGA 1851 socket, and utilizes Intel Turbo Boost Technology 2.0 and 3.0 for smart performance scaling during demanding workloads.

High-Speed DDR5 Memory Support

This board offers 4× DDR5 DIMM slots, supporting up to 256GB of memory at overclocked speeds of 8666+ MT/s. With support for Intel XMP and ASUS Enhanced Memory Profile III (AEMP III), users can fine-tune and stabilize memory performance for demanding apps, multitasking, and content creation.

Flexible Expansion & Storage Options

The ASUS PRIME B860-PLUS-CSM provides ample flexibility with:

• 1× PCIe 5.0 x16 slot for cutting-edge graphics cards

• 1× PCIe 4.0 x16 slot (x4 mode) for additional expansion

• 3× M.2 slots:

  • 1× PCIe 5.0 x4

  • 2× PCIe 4.0 x4

• 4× SATA 6Gb/s ports with RAID support
  Ideal for high-speed NVMe storage and large HDD arrays in workstation or gaming environments.

Fast Networking with ASUS LANGuard

Enjoy low-latency and secure connectivity with Realtek 2.5Gb Ethernet, fortified by ASUS LANGuard surge protection and signal enhancement, making it ideal for network-heavy tasks, streaming, and cloud workflows.

Comprehensive USB & Display Options

• Rear I/O includes:

  • 1× USB-C 20Gbps

  • Multiple USB 5Gbps/2.0 Type-A ports

• Front I/O headers support an additional 7× USB ports, ensuring plenty of expansion for peripherals.

• Display outputs:

  • DisplayPort 1.4

  • HDMI 2.1, supporting up to 4K @ 60Hz

High-Quality Audio Output

• Realtek 7.1 Surround Sound codec

• Audio shielding and premium capacitors for immersive sound

• Perfect for creators, gamers, or media professionals needing clean, clear audio

Built to Last: ASUS 5X Protection III & Q-Design

Reliability is at the core of the PRIME series. This motherboard features:

• 5X Protection III with overvoltage protection, SafeSlot Core+, ESD guards & more

• Q-Design features like:

  • Pre-mounted I/O shield

  • M.2 Q-Latch

  • PCIe Slot Q-Release

  • Simplifies DIY builds and system maintenance

Software & Thermal Features

• Armoury Crate software for real-time system monitoring, driver updates, and Aura Sync lighting control

• Flexible cooling support with:

  • VRM heatsinks

  • M.2 heatsinks

  • Multiple fan headers

  • Compatible with AI Cooling solutions for intelligent thermal management

Key Specifications

• Socket: LGA1851 (Intel Core Ultra Series)

• Chipset: Intel B860

• Memory: DDR5 up to 256GB, 8666+MT/s (OC)

• Expansion: PCIe 5.0 x16, PCIe 4.0 x16, 3× M.2, 4× SATA

• LAN: Realtek 2.5Gb Ethernet with LANGuard

• USB: USB 20Gbps-C, front and rear USB-A/C options

• Audio: Realtek 7.1 Surround Sound

• Software: Armoury Crate, BIOS FlashBack™, Windows 11/10 (64-bit) compatible

Whether you're building a reliable workstation, a budget-friendly gaming rig, or a business PC, the ASUS PRIME B860-PLUS-CSM ATX Motherboard offers a well-balanced mix of performance, stability, and long-term dependability backed by ASUS Corporate Stable Model (CSM) assurance.