PRIME B860M-K mATX DDR5 Motherboard with LGA1851 Socket

Compact, Reliable, and High-Performance

Upgrade your mid-range PC with the PRIME B860M-K, a micro-ATX motherboard designed for Intel® B860 chipset and Intel® Core™ Ultra processors. With DDR5 memory support and PCIe 5.0 compatibility, it balances performance, efficiency, and reliability in a compact footprint.

Moreover, ASUS integrates robust VRM power delivery and premium components to ensure stable operation during gaming, streaming, or multitasking. This board is ideal for users seeking a space-saving solution without compromising key features.

Key Features & Specifications

Optimized Micro-ATX Architecture

• Intel® B860 chipset

• LGA1851 socket for Intel® Core™ Ultra processors

• Micro-ATX form factor

• DDR5 memory support

• PCIe 5.0 x16 slot

• Dual M.2 PCIe 4.0/5.0 slots with heatsinks

• Realtek high-definition audio

• Multiple USB 3.2 Gen 2 & Gen 1 ports

Additionally, reinforced PCIe slots improve GPU stability, while fan headers and heatsinks provide efficient thermal management. ASUS BIOS and AI tuning tools allow easy system optimization for beginners and enthusiasts alike.

For official specifications and support, visit ASUS:
https://www.asus.com/

Gaming and Productivity Performance

The PRIME B860M-K ensures seamless communication between CPU, memory, and GPU. Consequently, you enjoy smooth frame rates, faster application loading, and efficient multitasking. DDR5 memory enhances responsiveness, while PCIe 5.0 provides future-proof compatibility for high-speed graphics cards and NVMe storage.

For trusted motherboard reviews and benchmarks, explore:
https://www.tomshardware.com/

Why Choose PRIME B860M-K?

The PRIME series focuses on reliability, expandability, and efficiency. However, this model also provides high-speed memory and PCIe support in a compact micro-ATX form factor.

Key advantages include:

• Stable VRM power delivery

• Compact micro-ATX design

• DDR5 and PCIe 5.0 support

• Expandable storage and connectivity options

Pair it with Intel Gaming Processors, add DDR5 RAM Kits, or complete your build with micro-ATX PC Cases.

Compatibility & Requirements

• Supports Intel Core Ultra processors (LGA1851)

• Requires DDR5 memory modules

• Micro-ATX compatible PC case

• Recommended PSU for high-performance GPUs

• Windows 11 recommended

Keep BIOS updated for full CPU support.

PRODUCT SPECIFICATIONS

• Chipset: Intel B860

• Socket: LGA1851

• Form Factor: Micro-ATX

• Memory Support: DDR5 DIMM slots

• Expansion Slots: PCIe 5.0 x16

• Networking: Optional via add-on card (no built-in WiFi)

• Storage: Dual M.2 PCIe 4.0/5.0 + SATA ports

• USB Ports: USB 3.2 Gen 2 & Gen 1

• Audio: Realtek HD Audio

Dimensions:

• 24.4 cm x 24.4 cm

Weight:

• Approx. 1.1 kg

Power Requirements:

• 24-pin ATX power connector

• 8-pin CPU power connector

Warranty:

• 3-Year Manufacturer Warranty

Package Contents:

• PRIME B860M-K Motherboard

• SATA Cables

• I/O Shield

• User Manual

• M.2 Mounting Kit

Does this motherboard support DDR4 memory?

No, it only supports DDR5 memory.

Does it have built-in WiFi?

No, this model does not include built-in WiFi. An external WiFi card is required.

Can I use a full-size GPU in a micro-ATX case?

Yes, provided the case supports the GPU dimensions.

Is this motherboard suitable for gaming and productivity tasks?

Yes, it provides reliable performance for gaming, streaming, and multitasking.

What case size is required?

A micro-ATX compatible PC case is required.