ASUS PRIME B860M-K Motherboard
The ASUS PRIME B860M-K is part of the renowned PRIME series, designed to unleash the full potential of Intel® Core™ Ultra Processors (Series 2). Equipped with a 6+1+1+1 phase digital power design and comprehensive thermal architecture, it ensures rock-solid performance under demanding workloads. This board supports DDR5 memory up to 8800+ MT/s with ASUS Enhanced Memory Profile III (AEMP III) for superior overclocking stability.
Dual M.2 slots offer ultra-fast PCIe 5.0 and PCIe 4.0 storage speeds, while the Realtek 2.5Gb Ethernet provides faster data transfers and low latency for networking tasks. The PRIME B860M-K integrates advanced AI features such as ASUS AI Advisor for intelligent system optimization, alongside intuitive UEFI BIOS and Fan Xpert 2+ software for precise control.
DIY builders benefit from features like SafeSlot Core+, Q-LED Core, and ProCool connectors, ensuring safety, ease, and reliability during installation. The inclusion of Aura Sync RGB and dual Gen 2 ARGB headers enables personalized lighting setups for a visually striking build. Combining performance, stability, and flexibility, the PRIME B860M-K is an ideal choice for next-generation AI-ready desktop systems.
Features
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Supports Intel® Core™ Ultra Processors (Series 2) on LGA1851 socket
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6+1+1+1 digital power design for efficient and stable power delivery
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DDR5 memory support up to 8800+ MT/s (OC) with AEMP III and DIMM Fit
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Dual M.2 slots (PCIe 5.0 x4 & PCIe 4.0 x4) for high-speed NVMe SSDs
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Realtek 2.5Gb Ethernet for ultra-fast, reliable networking
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USB 10Gbps Type-A and USB 5Gbps Type-C® connectivity for rapid data transfers
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AI Advisor for intelligent performance tuning and system analysis
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ASUS Fan Xpert 2+ for advanced thermal management and quiet operation
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Aura Sync RGB lighting with dual Addressable Gen 2 headers
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SafeSlot Core+ and ProCool connector for durability and stable power delivery
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micro-ATX form factor (24.4cm x 22.2cm) ideal for compact builds
Specifications
| Categories | Details |
|---|---|
| Model | ASUS PRIME B860M-K |
| CPU Support | Intel® Core™ Ultra Processors (Series 2), LGA1851 socket |
| Chipset | Intel® B860 |
| Memory | 2 x DIMM slots, DDR5 up to 8800+ MT/s (OC), Dual Channel, 128GB max |
| Memory Features | AEMP III, DIMM Fit, Intel® XMP support, On-Die ECC |
| Graphics Output | 1 x HDMI 2.1, 1 x DisplayPort 1.4 (supports up to 4K@60Hz) |
| Expansion Slots | 1 x PCIe 4.0 x16, 2 x PCIe 4.0 x1 |
| Storage | 2 x M.2 (PCIe 5.0 x4, PCIe 4.0 x4), 4 x SATA 6Gb/s |
| Networking | 1 x Realtek 2.5Gb Ethernet, ASUS LANGuard |
| USB (Rear) | 1 x USB 10Gbps (Type-A), 2 x USB 5Gbps (Type-A), 3 x USB 2.0 (Type-A) |
| USB (Front) | 1 x USB 5Gbps Type-C®, 1 x USB 5Gbps header (2 ports), 2 x USB 2.0 headers (4 ports) |
| Audio | Realtek 7.1 HD Audio Codec, 24-bit/192 kHz playback, premium capacitors |
| Cooling | VRM heatsink, 1 x CPU Fan, 2 x Chassis Fan headers |
| Internal I/O | 2 x M.2 slots, 4 x SATA ports, RGB & ARGB headers, TPM header |
| Special Features | 5X Protection III, SafeSlot Core+, ProCool, Q-LED Core, Fan Xpert 2+ |
| Software | Armoury Crate, AI Advisor, ASUS DriverHub, CPU-Z, Norton 360 (60-day trial) |
| BIOS | 256Mb Flash ROM, UEFI AMI BIOS |
| Operating System | Windows 11 (22H2 & later), Windows 10 64-bit (21H2 & later) |
| Form Factor | micro-ATX (24.4 cm x 22.2 cm) |
| Accessories | 2 x SATA cables, I/O Shield, M.2 screw package, Quick Start Guide |























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