ASUS MB Sc LGA1851 ROG STRIX B860-A GAMING WIFI, Intel B860, 4xDDR5, 1xThunderbolt, 1xDP, 1xHDMI, WiFi, ATX

CPU

Support Intel® Core™ Ultra Processors (Series 2)*
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.

Chipset

Intel® B860 Chipset

Memory

4 x DIMM slots, max. 256GB, DDR5
Supports up to 8600+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/.
** Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.

Graphics

1 x DisplayPort**
1 x HDMI™ port***
1 x USB4® (20Gbps) ports support USB
Type-C® display outputs****
* Graphics specifications may vary between
CPU types. Please refer to www.intel.com for any updates.
** Supports max. 8K@30Hz as specified in
DisplayPort 1.4.
*** Supports 4K@60Hz as specified in HDMI
2.1.
**** Supports max. 4K@60Hz as specified in
DisplayPort 1.4a.
**** In USB4® mode, supports up to 4K@60Hz,
maximum total bandwidth up to 23.8Gbps, for resolution support please check
DisplayPort 1.4 specs. In DP alt mode, supports up to UHBR10.
***** 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
Intel® B860 Chipset
1 x PCIe 4.0 x16 slot (supports x4 mode)*
* M.2_4 slot shares bandwidth with
PCIEX16(G4). When PCIEX16(G4) slot is operating, M.2_4 will be disabled.
- 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 4 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 2280 (supports
PCIe 4.0 x4 mode)
M.2_3 slot (Key M), type 2280/22110
(supports PCIe 4.0 x4 mode)
M.2_4 slot (Key M), type 2280 (supports
PCIe 4.0 x4 mode)**
4 x SATA 6Gb/s ports
* Intel® Rapid Storage Technology supports
SATA RAID 0/1/5/10.
** M.2_4 slot shares bandwidth with
PCIEX16(G4). When PCIEX16(G4) slot is operating, M.2_4 will be disabled.

Ethernet

1 x Intel® 2.5Gb Ethernet
ASUS LANGuard

Wireless & Bluetooth

Wi-Fi 7*
2x2 Wi-Fi 7 (802.11be)
Supports 2.4/5/6GHz frequency band**
Supports Wi-Fi 7 160MHz bandwidth, up to 2.9Gbps transfer rate.
Bluetooth® v5.4***
*Wi-Fi features may vary depending on the operating system
 For Windows 11, Wi-Fi 7 will require  24H2 or later version for full functions, Windows 11 21H2/22H2/23H2 only support Wi-Fi 6E.
 For Windows 10, please note that no driver is available , please refer to the Wi-Fi chipset vendor's website for details.
** Wi-Fi 6GHz frequency band and bandwidth regulatory may vary between countries.
*** The Bluetooth® version may vary, please refer to the Wi-Fi module manufacturer's website for the latest specifications.

USB

Rear USB (Total 10 ports)
1 x USB4® (20Gbps) port (1 x USB Type-C®)
3 x USB 10Gbps ports (2 x Type-A + 1 x USB
Type-C®)
2 x USB 5Gbps ports (2 x Type-A)
4 x USB 2.0 ports (4 x Type-A)
Front USB (Total 5 ports)
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
* USB Type-C® power delivery output: max.
5V/3A

Audio

Realtek ALC1220P 7.1 Surround Sound
High Definition Audio CODEC*
- Impedance sense for front and rear headphone outputs
- Internal audio Amplifier to enhance the highest quality sound for headphone and speakers
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- High quality 120 dB SNR stereo playback output and 113 dB SNR recording input (Line-in)
- Supports up to 32-Bit/192 kHz
playback*
Audio Features
- SupremeFX Shielding Technology
- Savitech SV3H712 AMP  
- Rear optical S/PDIF out port
- Premium audio capacitors
- Dedicated audio PCB layers
- Audio cover
* Due to limitations in HDA bandwidth, 32-Bit/192 kHz is not supported for 7.1 Surround Sound audio.
** A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

Back Panel I/O Ports

1 x USB4® (20Gbps) port (1 x USB Type-C®)
3 x USB 10Gbps ports (2 x Type-A + 1 x USB Type-C®)
2 x USB 5Gbps ports (2 x Type-A)
4 x USB 2.0 ports (4 x Type-A)
1 x DisplayPort
1 x HDMI™ port
1 x Wi-Fi module
1 x Intel® 2.5Gb Ethernet port
2 x Audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack™ button
1 x Clear CMOS button

Internal I/O 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
4 x 4-pin Chassis Fan headers
Power Related
1 x 24-pin Main Power connector
2 x 8-pin +12V CPU Power connector
Storage Related
4 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 Gen2 header(s)
1 x Front Panel Audio header (F_AUDIO)
1 x 10-1 pin Front System Panel header
1 x Thermal Sensor header
1 x Thunderbolt™ (USB4®) header

Special Features

Extreme Engine Digi+
- 5K Black metallic capacitors
ASUS Q-Design
- M.2 Q-Latch
- M.2 Q-Release
- M.2 Q-Slide
- PCIe Slot Q-Release Slim (with PCIe SafeSlot)
- Q-Antenna
- Q-Dashboard
- Q-DIMM
- Q-LED (CPU [red], DRAM [yellow], VGA
[white], Boot Device [yellow green])
- Q-Slot
ASUS Thermal Solution
- M.2 heatsink backplate
- M.2 heatsink
- VRM heatsink design
ASUS EZ DIY
- BIOS FlashBack™ button
- BIOS FlashBack™ LED
- Clear CMOS button
- CPU Socket lever protector
- ProCool
- Pre-mounted I/O shield
- SafeSlot
- SafeDIMM
Aura Sync
- Addressable Gen2 headers

Software Features

ROG Exclusive Software
- ROG CPU-Z
- Dolby Atmos
ASUS Exclusive Software
Armoury Crate
- Aura Creator
- Aura Sync
- Fan Xpert 4
- GameFirst
- Power Saving
AIDA64 Extreme (60 days free trial)
HWiNFO
ASUS AI Advisor
ASUS DriverHub
ASUS GlideX
TurboV Core
Adobe Creative Cloud 30 Days Free Trial)
Norton 360 for Gamers (60 Days Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
AI Overclocking Guide
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash
- ASUS UEFI BIOS EZ Mode
- ASUS MyHotkey
NPU Boost

BIOS

256 Mb Flash ROM, UEFI AMI BIOS

Manageability

WOL by PME, UEFI PXE

Accessories

Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x ASUS WiFi Q-Antenna
1 x Cable ties package
1 x M.2 Q-Latch
1 x M.2 Q-Slide
1 x ROG key chain
1 x ROG Strix stickers
4 x M.2 rubbers
Documentation
1 x Quick start guide

Operating System

Windows 11  (22H2 & later)

Form Factor

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