ASUS Alaplap S1851 PRO B860M-C-CSM INTEL B860, mATX

Please see the updated OS support requirements for the Intel^® Core Ultra 200S Series below:

•Intel^® Core Ultra 200S Series: Supports Windows 10 (version 21H2 and later) and Windows 11 (version 22H2 and later).

•Intel^® Core Ultra 200S Plus Series: Windows 11 (version 25H2 and later) for full compatibility.
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Please visit our GLOBAL website to check and download the latest updates.

Supports 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.

Intel^® B860 Chipset

4 x DIMM slots, max. 256GB, DDR5, dual DIMM clips
Supports 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/.
* *Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.

2 x DisplayPort**
1 x HDMI™ port***  
* Graphics specifications may vary between CPU types. Please refer to www.intel.com for any updates.
** DP1 Supports max. 4K@60Hz and DP2 Supports max. 8K@30Hz as all specified in DisplayPort 1.4
*** Supports 4K@60Hz as specified in HDMI 2.1.
***** 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.

Intel^® Core™ Ultra Processors(series 2)*
1 x PCIe 5.0 x16 SafeSlot
Intel^® B860 Chipset
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.

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 (supports PCIe 4.0 x4 modes)
4 x SATA 6Gb/s ports
* Intel^® Rapid Storage Technology supports SATA RAID 0/1/5/10.

1 x Intel^®1Gb
ASUS LANGuard
*With Intel^® I219-V LAN, Wake-on-LAN is not supported in S5 after the system transitions from G3.

M.2 slot only 2230 (Key E, CNVi & PCIe)*
*Wi-Fi module is sold separately.

Rear USB (Total 4 ports)
1 x USB 10Gbps port (1 x USB Type-C^®)
1 x USB 10Gbps port (1 x Type-A )
2 x USB 2.0 ports (2 x Type-A)
Front USB (Total 7 ports)
1 x USB 10Gbps connector (supports USB Type-C^® )
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports

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
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

1 x USB 10Gbps port (1 x USB Type-C^®)
1 x USB 10Gbps port (1 x Type-A)
2 x USB 2.0 ports (2 x Type-A )
2 x DisplayPort
1 x HDMI™ port
1 x PS/2 keyboard (purple) port
1 x PS/2 mouse (green) port
1 x Intel^® 1Gb Ethernet
3 x Audio jacks

Fan and Cooling Related
1 x 4-pin CPU Fan header
2 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
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Miscellaneous
1 x Clear CMOS header
1 x Chassis Intrude header
2 x COM Port headers
1 x Front Panel Audio header (AAFP)
1 x COM debug header
1 x LPT header
1 x Mono-Out Audio header (with Amp IC)
1 x M.2 slot (Key E)
1 x Speaker header
1x SMBUS header
1 x 10-1 pin Front Panel System header
1x SPI TPM header(14-1 pin)

ASUS Q-Design
- Q-LED Core
- Q-Slot
ASUS Thermal Solution
- Aluminum heatsink design
ASUS EZ DIY
- Box headers
- Dual DIMM clips
- SafeSlot
Bespoke Motherboard Design & Business Focused Features
- ASUS Self-Recovering BIOS
- ASUS Event Log
- ASUS Commercial BIOS Kit*
- Anti-moisture coating
- BIOS EZ Deploy
- 24/7 reliability
- Overcurrent protection
TXT support
* Please contact local FAE for Commercial BIOS kit.

ASUS Exclusive Software
ASUS DriverHub
UEFI BIOS
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash
- ASUS MyHotkey

IT Management software supported
- ASUS Control Center Express (ACCE)
Ready for ASUS DASH LAN Card*
1 x SMBUS header
* ASUS DASH LAN Card is sold separately.

256 (128+128) Mb Flash ROM, UEFI AMI BIOS

WOL by PME, PXE

Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x Screw package for M.2 SSD
1 x I/O Shield
1 x M.2 Key E screw package
Documentation
1 x ACC Express Activation Key Card
1 x Quick start guide

Windows 11 (22H2 & later), Windows 10 64-bit (21H2 & later)

micro-ATX Form Factor
9.6 inch x 9.6 inch (24.4 cm x 24.4 cm)