ASUS Prime B860M-A WiFi-CSM Motherboard

ASUS Prime B860M-A WiFi-CSM DDR5 PCIe 5.0 2x M.2 Slots Wi-Fi 6E, 2.5Gb USB Type-C DisplayPort HDMI Micro ATX

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ASUS Corporate Stable Model (CSM) is a commercial program designed to provide stable and reliable motherboards.
Ready for Advanced AI PC: Designed for the future of AI computing, with the power and connectivity needed for demanding AI applications
Intel LGA 1851 Socket: Ready for Intel Core Ultra Processors (Series 2)
Robust Power Solution: 7+1+1+1 80A DrMOS power stages, 8 pin ProCool power connector, alloy chokes and durable capacitors for stable power delivery
Latest M.2 Support: One onboard PCIe 5.0 M.2 slot equipped with one M.2 heatsink and one PCIe 4.0 M.2 slot

Specifications Overview

Model	PRIME B860M-A WIFI-CSM 90MB1JY0-M0AAYC
Release Date	January 2025 * First availability for purchase, it may not correspond to the actual market launch date.
Series	Prime
Socket	LGA1851
Form factor	Micro ATX
Chipset	Intel B860
Supported Memory	DDR5 4800Mhz 8600Mhz View compatible RAM ► * High clock speeds may require enabling the XMP profile in the motherboard BIOS ** RAM support may also depend on the CPU memory controller
ECC RAM Support	No
Audio Channels	Realtek 7.1 Surround Sound High Definition Audio CODEC
Max LAN Speed	1 x Realtek 2.5Gb EthernetASUS LANGuard
SLI Support	No
CrossFire Support	No
RAID Support	Yes
Back Connect	No
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
Wireless LAN	No
PCI-Express x16 Slots	2
PCI-Express x4 Slots	0
PCI-Express x1 Slots	1
SATA 6 Gbps Ports	4
SATA Express Ports	0
M.2 Ports	2
M.2 Devices support	2242 / 2260 / 2280 - M Key 2242 / 2260 / 2280 - M Key
RAM Slots	4
Maximum Supported RAM	256 GB
Onboard USB 2.0	1
Onboard USB 3.2 Gen 1	1
Onboard USB 3.2 Gen 2	1
Onboard USB 3.2 Gen 2x2	0

	Old Name	Current Name	Branding	Data Speed	Port
USB 2.0	USB 2.0	USB 2.0	Hi-Speed USB	480 Mbit/s	diverse
USB 3.0	USB 3.1 Gen 1	USB 3.2 Gen 1x1	SuperSpeed USB	5 Gbit/s	diverse
USB 3.1	USB 3.1 Gen 2	USB 3.2 Gen 2x1	SuperSpeed USB 10Gbps	10 Gbit/s	diverse
USB 3.2	USB 3.2 Gen 2x2	USB 4.0 Gen 2x2	USB4 20Gbps	20 Gbit/s	only USB-C
USB4	USB 4.0 Gen 3x2	USB4 1.0	USB4 40Gbps	40 Gbit/s	only USB-C
USB4v2	USB 4.0 Gen 4	USB4 2.0	USB4 80Gbps	80-120 Gbit/s	only USB-C