SKU: 46046400515

Asus PRIME B860M-K Intel LGA1851 M-ATX Motherboard

Sale price$1608.30 Regular price$1787.00
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

Asus PRIME B860M-K Intel LGA1851 M-ATX MotherboardASUS 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 K motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. Its designed to be Advanced AI PC ready, offering the power and

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-K 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.


Stable power is crucial for maximizing the performance of Intel® Core™ Ultra Processors (Series 2).The PRIME B860M-K features an 6+1+1+1 phase design with discrete MOSFETs, ensuring efficient and stable power delivery for Intel® processors plus steady performance for day-to-day use.


ASUS Enhanced Memory Profile III (AEMP III) is an advanced firmware feature that empowers users to achieve unparalleled memory performance with cutting-edge CUDIMM memory. Through a two-phase comprehensive tuning process, AEMP III first optimizes the clock driver and then the memory frequency. This results in the best balance between performance and stability, even at cutting-edge speeds of DDR5-7600 or higher.


PRIME B860M-K offers a total of two M.2 slots, including one that supports data-transfer speeds of up to 128Gbps via PCIe 5.0, one that supports 64Gbps via PCIe 4.0. This enables quicker boot-up and app load times with OS or application drives.


The PRIME B860M-K motherboard is engineered with multiple onboard heatsinks and an array of hybrid fan headers to help ensure your rig stays cool and stable under intense workloads. This motherboard offers a versatile range of connectivity, including support for PCIe 5.0 M.2, PCIe 4.0 slot and an arsenal of USB ports which includes Type-C® connection.


Realtek 2.5Gb Ethernet reduces CPU overhead and offers exceptionally high TCP and UDP throughput for faster, smoother data transfers. A batch of USB ports support high-end rigs loaded with peripherals, including a front USB Type-C® connector with ultrafast USB 5Gbps for transmission speeds of up to 5Gbps.


The PRIME B860M-K enhances the user experience across the board, from simplifying BIOS setting adjustments to offering customizable RGB lighting controls for a uniquely personal system aesthetic. The PRIME B860M-K motherboard features EZ PC DIY innovations that simplify and speed up the PC building process, making DIY easy and convenient.


FEATURES:



  • Micro-ATX Form Factor

  • Intel® B860 Chipset

  • Supports Intel® Core™ Ultra Processors (Series 2)

  • Support for DDR5 up to 8800+MT/s, AEMPIII

  • PCIe 4.0 support for graphics cards

  • 2.5Gb Ethernet support for faster data transfer


SPECIFICATIONS:



  • Socket: Intel Socket LGA1851

  • CPU: Supports Intel® Core™ Ultra Processors (Series 2) Desktop Processors

  • Chipset: Intel® B860 Chipset

  • DDR5 Memory: Support DDR5 8800+MT/s, ASUS Enhanced Memory Profile (AEMPIII) supported

  • Memory Channel: Dual

  • DIMM Slots: 2

  • Max Memory (GB): 128

  • PCI-E 4.0 x16: 1

  • PCI-E 4.0 x1: 2

  • SATA 6G: 4

  • M.2 Slot: 2

  • RAID: Intel® Rapid Storage Technology supports SATA RAID 0/1/5/10

  • LAN: Realtek 2.5Gb Ethernet, TUF LANGuard

  • USB Ports Rear:

    • 1 x USB 10Gbps port (1 x Type-A)

    • 2 x USB 5Gbps ports (2 x Type-A)

    • 3 x USB 2.0 ports (3 x Type-A)



  • USB Ports Front:

    • 1 x USB 5Gbps connector (supports USB Type-C®)

    • 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports

    • 2 x USB 2.0 headers support 4 additional USB 2.0 ports



  • USB Type-C® power delivery output: max. 5V/3A

  • Audio ports (Rear): Realtek 7.1 Surround Sound High Definition Audio CODEC

  • HDMI: 1

  • DisplayPort: 1

  • DirectX: 12

  • Form Factor: Micro-ATX

  • Operating System: Support for Windows 11(22H2 & later), Windows 10 64-bit(21H2 & later)


WHAT'S IN THE BOX:



  • Asus PRIME B860M-K Intel LGA1851 M-ATX Motherboard – Black x1

  • SATA Cables x2

  • I/O Shield x1

  • M.2 Anchor Package x1

  • Quick Start Guide x1

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 46046400515

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4.3 ★★★★★
Based on 18 reviews
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Product Reviews
A
Verified Purchase
Angel Aguirre
New York, US
★★★★★ 5
Why Struggle? It’s as easy as 1 , 2 , 3
Color: 14AWG-2 Lead
Love how simple the harness is! Bought this for a set of ditch lights for a 99 4runner. I love how much wire they give to let you run the wire to where it needs to go. 1st time buying and will come back for more in the future.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
E
Verified Purchase
Eric W.
Charlottesville, US
★★★★★ 4
Quality but short.
Color: 14AWG-2 Lead
Quality built harness but I wish they would make the switch wireing long enough to go from the dash to the battery area on film size vehicles.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
K
Verified Purchase
Kevin J Tully
Birmingham, US
★★★★★ 5
Fit and easy to install
Color: 14AWG-2 Lead
Exactly what I needed. Price was a lot better then I expected. Easy to install. Nice find
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Reviewed in the United States on June 8, 2025
B
Verified Purchase
Buyer
New York, US
★★★★★ 5
Great product
Color: 14AWG-2 Lead
A lot cheaper than getting wire, a relay, connectors, fuse, etc. Great durability, like the extra coating over the wires. Mounted the relays in a spot where they get totally soaked. They were sitting in water when I tested them out they works great so I’d say water resistant is an understatement. Overall great product.
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Reviewed in the United States on October 24, 2022
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 5
Makes wiring lights faster and cleaner
Color: 14AWG-2 Lead
Harness is well insulated and much easier to use than running wires separately. I’ve installed 2 kits and they work well. Greatly simplifies wiring auxiliary lights on a vehicle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 13, 2023

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