ASUS PRIME B860M-A WIFI-CSM DDR5 Motherboard
The ASUS PRIME B860M-A WIFI-CSM is a micro-ATX motherboard for Intel Core Ultra Series 2 processors, featuring DDR5 support, PCIe 5.0, dual M.2 slots, Wi-Fi 6E, 2.5 Gb Ethernet, and USB 20 Gbps Type-C. With robust power delivery, efficient cooling, and DIY-friendly tools like a pre-mounted I/O shield and Q-LED, it offers a reliable and feature-rich foundation for modern builds.
Key Features
- AEMP III for Ultimate DDR5 Performance ASUS Enhanced Memory Profile III (AEMP III) is an advanced firmware feature that empowers users to achieve unparalleled memory performance with cutting-edge CUDIMM memory. Through a two-phase comprehensive tuning process, AEMP III first optimizes the clock driver and then the memory frequency. This results in the best balance between performance and stability, even at cutting-edge speeds of DDR5-7600 or higher.
- DIMM FitDIMM Fit is an ASUS-exclusive BIOS feature that precisely analyzes individual memory modules to optimize performance and pinpoint potential issues. This offers peak efficiency, compatibility, and system stability. Whether you are an overclocker seeking ultimate performance, a competitor pursuing the most responsive gameplay, or a content creator prioritizing rock-solid stability, DIMM Fit provides optimizations tailored to your needs and your hardware configuration.Two M.2 slots (up to 128Gbps)The PRIME B860M-A WIFI-CSM offers a total of two M.2 slots, including one that supports data-transfer speeds of up to 128Gbps via PCIe 5.0, one that supports 64Gbps via PCIe 4.0. This enables quicker boot-up and app load times with OS or application drives.
Cooler by design
The PRIME B860M-A WIFI-CSM motherboard is engineered with multiple onboard heatsinks and an array of hybrid fan headers to help ensure your rig stays cool and stable under intense workloads.
ASUS Fan Xpert 2+
ASUS Fan Xpert 2+ software provides comprehensive control over fans. An Auto-Tuning mode intelligently configures all parameters with a single click. There’s also an Extreme Quiet mode that reduces chassis fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS.
Cooler compatibility
ASUS AIO coolers offer robust performance, high overclocking potential, bold aesthetics and customizable functionality for new motherboards, empowering you to build your dream gaming rig.
Empowering connections
The PRIME B860M-A WIFI-CSM motherboard offers a versatile range of connectivity, including support for WiFi 6E, the latest version of PCI Express and an arsenal of USB ports which includes Type-C connections.
WiFi 6E
Built-in WiFi 6E4 technology takes advantage of the newly available radio spectrum in the 6 GHz band. With triple the bandwidth of the 2.4/5/6 GHz band, WiFi 6E delivers ultrafast wireless networking speeds with improved capacity and better performance in dense wireless environments.
| 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. |
| Chipset | Intel® B860 Chipset |
| Memory | 4 x DIMM slots, max. 256GB, DDR5 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(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/. * 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. |
| Onboard Graphics |
2 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. |
| Audio | 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. |
| LAN | 1 x Realtek 2.5Gb Ethernet ASUS LANGuard |
| Wireless Communication Module | 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. |
| 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) 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 Interface | 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. |
| USB | Rear USB (Total 8 ports) 1 x USB 20Gbps port (1 x USB Type-C® with DP Alt mode) 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)** 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 **USB_E1 port, USB_E2 port, USB_E3 port and USB_E4 port share the bandwidth. |
| Internal I/O Connector | 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 additionalUSB 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 |
| Back Panel Connectors | 1 x USB 20Gbps port (1 x USB Type-C® with DP Alt mode) 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 |
| I/O Controller | iTE® I/O Controller Chip |
| H/W Monitoring | Voltage detection Temperature detection Fan speed detection Water cooling flow rate detection Fan fail warning Fan speed control * Whether the fan (pump) speed control function is supported will depend on the fan(pump) you install. |
| BIOS | 256 (128+128) Mb Flash ROM, UEFI AMI BIOS |
| Unique Features | ASUS 5X PROTECTION III – DIGI+ VRM (- Digital power design with DrMOS) – ESD Guards – LANGuard – Overvoltage protection – SafeSlot – 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 |
| Bundled Software | Norton® Internet Security (OEM version) |
| Operating System | Windows 11 (22H2 & later),
Windows 10 64-bit(21H2 & later) |
| Form Factor | micro-ATX Form Factor 9.6 inch x 9.6 inch (24.4 cm x 24.4 cm) |
| Warranty | 3 Years |
| Note** | **Prices, Specifications & Features are subject to change without notice |
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