Asus PRIME B860M-A WIFI-CSM B860 LGA 1851 mATX motherboard, Intel® Core™ Ultra Series 2 Ready, Advanced AI PC-ready, 7+1+1+1 stage, DDR5, PCIe 5.0 x16, HDMI, USB 20Gbps Type-C®, 2x M.2, WiFi 6E, 2.5Gb LAN
Brand
ASUS
Series
Prime
Model
PRIME B860M-A WIFI-CSM
Part Number
90MB1JY0-M0AAYC
Supported CPU
CPU Socket Type
LGA 1851
CPU Type
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.
Chipsets
Chipset
Intel B860
Memory
Number of Memory Slots
4x288pin (DDR5)
Memory Standard
4 x DIMM slots, max. 192GB, DDR5
Supports up to 8400+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)
* 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/.
1 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.
Storage Devices
SATA 6Gb/s
4 x SATA 6Gb/s
M.2
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)
SATA RAID
0/1/5/10
Onboard Audio
Audio Channels
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
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.
Onboard LAN
Max LAN Speed
1 x Realtek 2.5Gb Ethernet
ASUS LANGuard
Wireless LAN
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.
Bluetooth
Yes
Rear Panel Ports
Back I/O Ports
1 x USB 20Gbps port (1 x USB Type-C®)
1 x USB 10Gbps port (1 x Type-A)
2 x USB 5Gbps ports (2 x Type-A)
4 x USB 2.0 ports (4 x Type-A )
2 x DisplayPort
1 x HDMI™ port
1 x Wi-Fi module
1 x Realtek 2.5Gb Ethernet port
3 x Audio jacks
Internal I/O Connectors
Other Connectors
Fan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
3 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 10Gbps connector (supports USB Type-C® )
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
1 x USB 2.0 header supports 2 additional USB 2.0 ports
Miscellaneous
3 x Addressable Gen 2 headers
1 x Aura RGB header
1 x Clear CMOS header
1 x Chassis Intrusion 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 System Panel header
1 x Thunderbolt™ (USB4®) header
Software Feature
Windows 11
Windows 11 (22H2 & later), Windows 10 64-bit(21H2 & later)
Physical Spec
Form Factor
Micro ATX
Dimensions (W x L)
9.6 inch x 9.6 inch (24.4 cm x 24.4 cm)
Features
Features
ASUS 5X PROTECTION III
– DIGI+ VRM (- Digital power design with DrMOS)
– ESD Guards
– LANGuard
– Overvoltage protection
– Stainless-steel back I/O
ASUS Q-Design
– Q-Antenna
– Q-Dashboard
– Q-DIMM
– Q-LED Core
– Q-Slot
ASUS Thermal Solution
– M.2 heatsink
– VRM heatsink design
ASUS EZ DIY
– ProCool
– Pre-mounted I/O shield
Aura Sync
– Aura RGB header
– Addressable Gen2 headers
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