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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.

CPU

Intel Socket LGA1851 for Intel Core Ultra Processors (Series 2)

  • Supports Intel Turbo Boost Technology 2.0 and Intel Turbo Boost Max Technology 3.0
Chipset

Intel B860 Express Chipset

Memory

2 x DIMM slots, max. 128GB, DDR5

  • Supports up to 8800+MT/s (OC), Non-ECC Un-buffered ,Clocked Unbuffered DIMM (CUDIMM)
  • Dual channel memory architecture
  • DIMM Fit
  • Supports Intel Extreme Memory Profile (XMP) memory module
  • ASUS Enhanced Memory Profile III(AEMPIII)
Onboard Graphics

Integrated Graphics Processor-Intel HD Graphics support:

  • 1 x DisplayPort
    • Supports max. 4K@60Hz as specified in DisplayPort 1.4.
  • 1 x HDMI port
    • Supports 4K@60Hz as specified in HDMI 2.1.
Audio

Realtek 7.1 Surround Sound High Definition Audio CODEC

  • Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
  • Supports up to 24-Bit/192 kHz playback
    • A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
  • Audio Features
    • Audio Shielding
    • Premium audio capacitors
    • Dedicated audio PCB layers
LAN

1 x Realtek 2.5Gb Ethernet

  • ASUS LANGuard
Wireless Communication ModuleNone
Expansion Slots

Intel Core Ultra Processors(Series 2)

  • 1 x PCIe 4.0 x16 slot

Intel B860 Chipset

  • 2 x PCIe 4.0 x1 slots
Storage Interface

Supports 2 x M.2 slots and 4 x SATA 6Gb/s ports

Intel Core Ultra Processors(Series 2)

  • M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)

Intel B860 Chipset

  • M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
  • 4 x SATA 6Gb/s ports
  • 4 x SATA 6Gb/s ports

Intel Rapid Storage Technology supports SATA RAID 0/1/5/10.

USB

Rear USB (Total 6 ports)

  • 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_E1 port, USB_E2 port, USB_E3 port and USB_E4 port share the bandwidth.

Front USB (Total 7 ports)

  • 1 x USB 5Gbps connector (supports USB Type-C)
    • USB Type-C power delivery output: max. 5V/3A.
  • 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_E1 port, USB_E2 port, USB_E3 port and USB_E4 port share the bandwidth.
Internal I/O Connectors

Fan and Cooling Related

  • 1 x 4-pin CPU Fan header
  • 2 x 4-pin Chassis Fan headers

Power Related

  • 1 x 24-pin Main Power connector
  • 1 x 8-pin +12V CPU Power connector

Storage Related

  • 2 x M.2 slots (Key M)
  • 4 x SATA 6Gb/s ports

USB

  • 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

Miscellaneous

  • 2 x Addressable Gen2 headers
  • 1 x Aura RGB header
  • 1 x Clear CMOS header
  • 1 x COM Port header
  • 1 x Front Panel Audio header (F_AUDIO)
  • 1 x S/PDIF Out header
  • 1 x SPI TPM header (14-1 pin)
  • 1 x 10-1 pin Front Panel System header
Back Panel Connectors
  • 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)
  • 1 x DisplayPort
  • 1 x HDMI port
  • 1 x Realtek 2.5Gb Ethernet port
  • 3 x Audio jacks
  • 1 x PS/2 Keyboard/Mouse combo port
I/O Controller
  • Not Specified
H/W Monitoring
  • Voltage detection
  • Temperature detection
  • Fan speed detection
  • Fan fail warning
  • Fan speed control
BIOS
  • 256(128+128) Mb Flash ROM, UEFI AMI BIOS
Unique Features

ASUS 5X PROTECTION III

  • DIGI+VRM
  • LANGuard
  • Overvoltage protection
  • SafeSlot Core+
  • Stainless-steel back I/O

ASUS Q-Design

  • Q-Dashboard
  • Q-DIMM
  • Q-LED Core
  • Q-Slot

ASUS Thermal Solution

  • VRM heatsink design

ASUS EZ DIY

  • ProCool

Aura Sync

  • Aura RGB header
  • Addressable Gen2 headers
Bundled Software

Armoury Crate

  • Aura Sync
  • Fan Xpert 2+
  • Power Saving

ASUS AI Advisor

ASUS DriverHub

ASUS CPU-Z

Norton 360 Deluxe (60 Days Free Trial)

WinRAR (40 Days Free Trial)

UEFI BIOS

ASUS EZ DIY

  • ASUS CrashFree BIOS 3
  • ASUS EZ Flash
  • ASUS UEFI BIOS EZ Mode
  • ASUS MyHotkey
Operating System
  • Support for Windows 11 64-bit
Form Factor
  • Micro ATX Form Factor, 24.4cm x 22.2cm
Manufacturer
Manufacturer's WebsiteLink *
Product WebsiteLink *
Warranty Information
Warranty Duration3 Years
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ASUS PRIME B860M-K, Intel B860 Chipset, LGA1851, DDR5, Micro ATX Desktop Motherboard

- Socket LGA1851, Intel B860 Chipset
-
Supports Intel Core Ultra (Series 2) Processors
- 2 x DDR5 DIMM Slots, up to 128GB, DDR5-8800+ (OC)
- Supports CUDIMM Memory Modules

- 1 x PCIe 4.0 x16 Slot
-
2 x PCIe 4.0 x1 Slots
- 1 x M.2 PCIe 5.0 NVMe Slot
- 1 x M.2 PCIe 4.0 NVMe Slot
-
4 x SATA Ports with RAID 0/1/5/10
- 2.5Gbps LAN
- 1 x DisplayPort 1.4, 1 x HDMI 2.1
- 1 x Rear USB Type-C 20Gb/s

- 2 x Rear USB Type-A 10Gb/s, 1 x Rear USB Type-A 5Gb/s
- 3 x Rear USB 2.0/1.1
- 1 x PS/2 Keyboard/Mouse Port
- 3 x Rear Audio Jacks
- 1 x ARGB Gen2 Header
- Form Factor: Micro-ATX
- 3 Year Warranty

  • Product Code: 90MB1JT0-M0EAY0
  • Availability: In Stock leadtimeTooltip Lead Times:
    • In Stock with Progenix: Ready for collection/dispatch once payment clears
    • In Stock: 1-3 working days until dispatched or ready for collection
    • Out Of Stock: Contact us to see if this item will be restocked.
  • R3,367



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