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ASUS PRIME B860-PLUS WIFI ATX motherboard with Intel Ultra 5 245K CPU and thermal grease tube

ASUS

ASUS PRIME B860-PLUS WIFI + Ultra 5 245K Combo

SKU CH-ZYY6-FNFF0

B860 ATX motherboard paired with an Intel Ultra 5 245K processor, LGA 1851 socket, DDR5 memory up to 8200 MT/s, PCIe 5.0 M.2 slot, WiFi 6E and 2.5 Gb Ethernet

  • CPU socketLGA 1851
  • ChipsetIntel B860
  • Form factorATX
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryUp to 8200+ MT/s (OC)
  • Max supported RAM192 GB

Model PRIME B860-PLUS WIFI

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CPU +Ultra 5 245K

  • Ready for Intel Core Ultra Series 2 processors with LGA 1851 socket
  • 125W CPU with 24MB L3 cache and 26MB L2 cache
  • DDR5 memory up to 8200 MT/s across four slots
  • PCIe 5.0 x16 slot plus PCIe 5.0 M.2 with heatsink
  • WiFi 6E, Bluetooth 5.3 and Realtek 2.5Gb Ethernet built in

Combo for Intel Core Ultra Series 2

This bundle pairs the ASUS PRIME B860-PLUS WIFI motherboard with an Intel Core Ultra 5 245K processor and Shin-Etsu X-23-7868-2D thermal grease. The LGA 1851 platform supports up to 192GB of DDR5 memory across four slots with speeds up to 8200+ MT/s when overclocked. It targets builders who want a ready-to-assemble foundation for advanced AI workloads and high-performance computing.

ATX board with 8+1+1+1 80A DrMOS stages

The motherboard uses an 8+1+1+1 phase power design fed by an 8-pin ProCool connector alongside alloy chokes and durable capacitors. Connectivity includes one PCIe 5.0 x16 slot, one PCIe 4.0 x16 slot running at x4, three PCIe 4.0 x16 slots at x1, four SATA 6Gb/s ports, and two M.2 sockets supporting 2242, 2260, 2280 and 22110 form factors. Rear I/O provides USB 20Gbps Type-C, two USB 10Gbps Type-A, one USB 5Gbps Type-A, four USB 2.0 ports, HDMI, DisplayPort, 2.5Gb Ethernet and WiFi 6E with Bluetooth 5.3.

Pre-applied thermal grease and DIY aids

The included Shin-Etsu X-23-7868-2D compound eliminates the need to purchase paste separately and ensures reliable thermal transfer from the 125W processor. Onboard features such as Q-Dashboard, Q-DIMM, Q-LED, Q-Slot and a pre-mounted I/O shield simplify assembly and troubleshooting. Fan Xpert 2+ and hybrid fan headers give software control over cooling, while three addressable Gen 2 headers enable Aura Sync RGB customisation.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $559.99
Pricier than about 91% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameASUS
Model namePRIME B860-PLUS WIFI+Ultra 5 245K
Part numberPRIME B860-PLUS WIFI+Ultra 5 245K
Processor
CPU socketLGA 1851
ChipsetIntel B860
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryUp to 8200+ MT/s (OC)
Max supported RAM192 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsIntel 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 2242/2260/2280/22110 (supports PCIe 4.0 x4 mode)
SATA and RAID support* Intel Rapid Storage Technology supports SATA RAID 0/1/5/10.
Audio & video
Sound channelsRealtek 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
Audio Features
- Audio Shielding
- Premium audio capacitors
- Dedicated audio PCB layers
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 ax
Bluetooth support5.3
Ports & slots
PCIe 5.0 x16 slotsIntel Core Ultra Processors (Series 2)
1 x PCIe 5.0 x16 slot
PCIe 4.0 x16 slotsIntel B860 Chipset
1 x PCIe 4.0 x16 slot (supports x4 mode)
3 x PCIe 4.0 x16 slots (support x1 mode)
Onboard USB headers1 x USB 5 Gbit/s connector (supports USB Type-C)
1 x USB 5 Gbit/s header supports 2 additional USB 5 Gbit/s ports
1 x USB 2.0 header supports 2 additional USB 2.0 ports
Power
Power connectors1 × 24-pin Main Power connector
2 × 8-pin +12 V CPU Power connectors
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 supportWindows 11
More details
BIOS2 × 128 Mb Flash ROM, UEFI AMI BIOS

Other versions of this model

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Questions about this item

What PCIe generation does the primary M.2 slot use and what speed does it cap at?

The M.2_1 slot runs on PCIe 5.0 x4, capping sequential throughput at the drive's PCIe 5.0 limit.

What socket and cooler mounting pattern does the combo require?

The board uses LGA 1851; coolers must match the 1851 mounting holes.

How is the included Shin-Etsu X-23-7868-2D grease applied and what step is often missed?

Place a pea-sized dot on the Ultra 5 245K heatspreader, mount the cooler straight down, and tighten diagonally; many forget to remove the CPU socket cover first.

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