ASUS PRIME B860M-A-CSM DDR5 Motherboard
The ASUS PRIME B860M-A-CSM DDR5 is a micro-ATX motherboard designed for Intel Core 14th/13th Gen processors, featuring support for high-speed DDR5 memory, PCIe 5.0, dual M.2 slots, 2.5Gb Ethernet, and comprehensive cooling solutions. It’s ideal for business and productivity builds with enhanced durability, corporate stability, and ASUS CSM (Corporate Stable Model) support.
Key Features
- Robust power design:Stable power is crucial for maximizing the performance of Intel Core Ultra Processors (Series 2). The PRIME B860M-A-CSM is designed to meet the needs of high-core-count CPUs. It features 7(80A) + 1(80A) + 1(80A) + 1(80A) power stages that integrate high-side and low-side MOSFETs and drivers into packages rated for up to 80 amperes each. This configuration ensures optimal power delivery, efficiency, stability and performance for both current and future Intel processors.
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 Fit:
DIMM 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-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-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.
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-CSM motherboard offers a versatile range of connectivity, including support for the latest version of PCI Express and an arsenal of USB ports which includes Type-C connections.
Personalization:
The PRIME B860M-A-CSM enhances the user experience across the board, from simplifying BIOS setting adjustments to offering customizable RGB lighting controls for a uniquely personal system aesthetic.
DIY friendly:
The PRIME B860M-A-CSM motherboard features EZ PC DIY innovations that simplify and speed up the PC building process, making DIY easy and convenient.
| 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 | Realtek® 2.5GbE LAN chip (2.5 Gbps/1 Gbps/100 Mbps) |
| Wireless Communication Module | Intel® Wi-Fi 6E AX210 – WIFI a, b, g, n, ac, ax, supporting 2.4/5/6 GHz carrier frequency bands – BLUETOOTH 5.3 – Support for 11ax 160MHz wireless standard (Actual data rate may vary depending on environment and equipment.) |
| 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 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 | 1 x 128 Mbit flash Use of licensed AMI UEFI BIOS PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0 |
| 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-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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