We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
ASUS PRIME B860M-A WIFI motherboard with Intel Ultra 5 245K CPU and thermal grease tube

ASUS

ASUS PRIME B860M-A WIFI-CSM Intel Motherboard & Ultra 5 245K CPU Combo

SKU CH-91BC-MXQ8T

mATX motherboard with Intel Core Ultra 5 245K CPU, DDR5 support, PCIe 5.0 x16, WiFi 6E and 2.5Gb Ethernet

  • ProcessorSupport Intel® Core™ Ultra Processors (Series 2) , LGA1851*
  • ChipsetIntel B860
  • Form factorMicro ATX
  • CPU socketLGA 1851
  • Memory slot count4 × 288pin (DDR5)
  • Supported memory4 x DIMM slots, max. 192 GB, DDR5 Supports up to 8400+MT/s (

Model PRIME B860M-A WIFI

Show 3 more

CPU +Ultra 5 245K

  • Ready for Intel Core Ultra Series 2 processors with LGA 1851 socket
  • Robust 7+1+1+1 80A DrMOS power stages for stable delivery
  • PCIe 5.0 x16 slot plus PCIe 5.0 M.2 for fastest graphics and storage
  • WiFi 6E and Realtek 2.5Gb Ethernet for high-speed networking
  • DDR5 support up to 192GB across four DIMM slots

Ready for Intel Core Ultra Series 2

This bundle pairs the ASUS PRIME B860M-A WIFI motherboard with an Intel Ultra 5 245K processor and Shin-Etsu X-23-7868-2D thermal grease. The board uses the Intel B860 chipset and LGA 1851 socket, supporting Intel Core Ultra Processors (Series 2). It delivers a 7+1+1+1 80A DrMOS power design with an 8-pin ProCool connector for stable delivery.

Suits builders who want AI-ready performance

The combination targets users building advanced AI PCs who value long-term platform stability from the ASUS Corporate Stable Model programme. It is not aimed at buyers needing larger ATX form factors, extra PCIe 5.0 x16 slots, or integrated CPU cooling beyond the supplied thermal grease.

Included grease and board features simplify

Shin-Etsu X-23-7868-2D thermal compound is provided for immediate CPU installation. The motherboard adds Q-Dashboard, Q-DIMM, Q-LED Core and Q-slot for easier assembly, plus Fan Xpert 2+ headers, enlarged VRM heatsinks, an M.2 heatsink and a PCH heatsink for thermal management.

How it compares

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

Price $466.99
Pricier than about 91% of the 2,965 comparable items (median $97.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameASUS
Product linePrime
Model namePRIME B860M-A WIFI+Ultra 5 245K
Part numberPRIME B860M-A WIFI+Ultra 5 245K
Processor
CPU socketLGA 1851
ChipsetIntel B860
Memory
Memory slot count4 × 288pin (DDR5)
Max supported RAM192 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsTotal 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)
SATA and RAID support0/1/5/10
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 speed1 x Realtek 2.5Gb Ethernet
ASUS LANGuard
Wi-Fi standardWi-Fi 6E
2 × 2 Wi-Fi 6E (802.11ax)
Supports 2.4/5/6 GHz frequency band*
Bluetooth® v5.3**
* WiFi 6E 6 GHz regulatory may vary between countries, supported only in Windows 11 or later
** The Bluetooth® version may vary, please refer to the Wi-Fi module manufacturer's website for the latest specifications.
Bluetooth supportYes
Ports & slots
PCIe 5.0 x16 slots1 x PCI Express 5.0 x16
PCIe 4.0 x16 slots1 x PCIe 4.0 x16 slot (supports x4 mode)
1 x PCIe 4.0 x1 slot
- To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.
Size & build
Form factorMicro ATX
Width and length9.6 in × 9.6 in (24.4 cm × 24.4 cm)
Compatibility
Windows 11 support(22H2 & later), Windows 10 64-bit(21H2 & later)

Other versions of this model

5 more in the same range

Questions about this item

What DDR5 memory speed and capacity do I need to match the board's 8400+ MT/s OC support and 192 GB limit?

Install up to four DDR5 CUDIMM modules for a total of 192 GB; the board runs them at speeds up to 8400+ MT/s when XMP is enabled.

Will my existing PCIe 4.0 graphics card and SATA SSDs work in the PCIe 5.0 x16 slot and the four SATA 6 Gb/s ports?

Yes, the PCIe 5.0 x16 slot is backward compatible with PCIe 4.0 cards, and the four SATA 6 Gb/s ports accept current SATA SSDs and HDDs.

How can I confirm the Wi-Fi 6E and 2.5 Gb Ethernet links are active after the build?

Check Device Manager for the Wi-Fi 6E adapter and Realtek 2.5 Gb Ethernet controller, then verify a 6 GHz connection and a 2.5 Gb/s link speed in the network status panel.

More in Motherboards for Intel CPUs

Similar items