ASUS PRIME B860-PLUS WIFI-CSM ATX Motherboard, 2x M.2 slots, 4x SATA, WiFi 6E | PRIME B860-PLUS WIFI-CSM

ASUS PRIME B860-PLUS WIFI-CSM ATX Motherboard, 2x M.2 slots, 4x SATA, WiFi 6E

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 B860-PLUS WIFI-CSM 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.

SPECIFICATION
Model PRIME B860-PLUS WIFI-CSM
Chipset Intel® B860 Chipset

BIOS 2 x 128 Mb Flash ROM, UEFI AMI BIOS
Manageability WOL by PME, PXE
Operating System Windows 11 (22H2 later), Windows 10 64-bit(21H2 later)

CPU
Support Intel® Core™ Ultra Processors (Series 2) , LGA1851
Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0**
* Refer to https://www.asus.com/support/download-center/ for CPU support list.
** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types.

Memory
4 x DIMM slots, max. 256GB, DDR5
Support up to 8666+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 (AEMP III)
* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. Adjustments will be made based on the specifications of mass-produced memory products available on the market.
* Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.

Graphics
1 x DisplayPort**
1 x HDMI™ port***
1 x USB 20Gbps port (USB Type-C®) supports DisplayPort video output****
* Graphics specifications may vary between CPU types. Please refer to www.intel.com for any updates.
** Supports max. 4K@60Hz as specified in DisplayPort 1.4.
*** Supports 4K@60Hz as specified in HDMI 2.1.
**** Supports max. 4K@120Hz as specified in DisplayPort 1.4.
***** VGA resolution support depends on processors’ or graphic cards’ resolution.
****** While installing the operating system, please ensure that your monitor is
connected to the HDMI port on the back I/O panel or to a discrete graphics card.

Expansion Slots
Intel® Core™ Ultra Processors (Series 2)*
1 x PCIe 5.0 x16 slot (PCIEX16(G5))
Intel® B860 Chipset
1 x PCIe 4.0 x16 slot (PCIEX16(G4)_3) (supports x4 mode)
3 x PCIe 4.0 x16 slots (PCIEX16(G4)_1/2/4) (support x1 mode)
– To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.

Storage
Total 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 2242/2260/2280/22110 (supports PCIe 4.0 x4 mode)
4 x SATA 6Gb/s ports
* Intel® Rapid Storage Technology supports SATA RAID 0/1/5/10.

Ethernet
1 x Realtek 2.5Gb Ethernet
ASUS LANGuard

Wireless Bluetooth
Wi-Fi 6E
2×2 Wi-Fi 6E (802.11ax)
Supports 2.4/5/6GHz frequency band*
Bluetooth® v5.3**
* WiFi 6E 6GHz 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.

Form Factor
ATX Form Factor
12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )

Product Last Updated: 10/04/2026

* Whilst we endevour to have the correct information on our products provided from the supplier/manufacturer errors do occur. If you would like to double check the information, please feel free to contact us and we will be more than happy to confirm information on the item prior to purchase. In the event that product information is incorrect due to information we received from our supplier or manufacturer, we do not take responsibility or be held liable for damage(s) or loss(s). We will work with you and do our best to make the best of a bad situation and work with our supplier(s) and/or manufacturer(s) to supply the correct information for the item purchased etc..