Asus PRIME B860M-K-CSM LGA 1851 micro-ATX Motherboard

Asus PRIME B860M-K-CSM LGA 1851 micro-ATX Motherboard

The Potaka IT Asus PRIME B860M-K-CSM LGA 1851 micro-ATX Motherboard is designed for desktop PC builders who want a modern Intel platform, DDR5 memory support, high-speed SSD storage, and reliable connectivity in a compact form factor. Built around the Intel B860 chipset, this ASUS motherboard supports Intel Core Ultra Processors (Series 2) with the LGA 1851 socket, making it suitable for productivity PCs, professional workstations, home office systems, and carefully configured gaming desktops.

With two DDR5 memory slots supporting up to 128GB of RAM, two M.2 storage slots including PCIe 5.0 x4 support, and Realtek 2.5Gb Ethernet, the Asus PRIME B860M-K-CSM offers a practical foundation for a modern PC build. Its micro-ATX design also makes it a useful option for builders choosing a compact desktop PC or upgrading their system with compatible PC components.

Key Features of Asus PRIME B860M-K-CSM Motherboard

• Intel LGA 1851 platform: Supports Intel Core Ultra Processors (Series 2), subject to the official CPU compatibility list.
• Intel B860 chipset: Provides a modern platform for compatible Intel desktop processors.
• Dual-channel DDR5 memory: Two DIMM slots support up to 128GB of memory and speeds up to 8800+ MT/s through overclocking, depending on hardware configuration.
• Dual M.2 storage: Includes one PCIe 5.0 x4 M.2 slot and one PCIe 4.0 x4 M.2 slot for compatible SSDs.
• 2.5Gb Ethernet: Realtek wired networking provides a higher-bandwidth connection than conventional Gigabit Ethernet when supported by the network infrastructure.
• Display connectivity: HDMI 2.1 and DisplayPort 1.4 support compatible displays at up to 4K resolution and 60Hz.
• Compact micro-ATX design: Measures 24.4 × 22.2 cm for compatible compact desktop builds.
• ASUS protection and DIY features: Includes ASUS 5X PROTECTION III, Q-Design features, BIOS utilities, and Aura lighting headers.

Intel Core Ultra Processor Support and B860 Chipset

The Asus PRIME B860M-K-CSM is built for Intel Core Ultra Processors (Series 2) using the LGA 1851 socket. Its Intel B860 chipset provides a modern foundation for everyday computing, office productivity, software development, content creation, and gaming systems configured with compatible components.

For users planning a new Intel desktop, this motherboard offers a platform for pairing a supported processor with DDR5 RAM, fast NVMe storage, and a compatible graphics card. Before purchasing a processor, check the official ASUS CPU support list and the BIOS requirements for the exact CPU model.

DDR5 RAM Support up to 128GB

This ASUS micro-ATX motherboard features two DDR5 DIMM slots with dual-channel memory architecture and support for up to 128GB of RAM. It supports memory speeds up to 8800+ MT/s through overclocking, although the achievable speed depends on the processor, memory modules, BIOS version, and system configuration.

Intel Extreme Memory Profile (XMP) and ASUS Enhanced Memory Profile III (AEMP III) support can simplify memory configuration with compatible modules. These features make the board suitable for users who want a responsive system for multitasking, programming, office applications, and memory-intensive workloads.

For the best compatibility, consult the motherboard's memory support list before choosing a DDR5 kit. Advertised overclocked memory speeds are not guaranteed for every processor and memory configuration.

PCIe 5.0 M.2 SSD Support for Faster Storage

The Asus PRIME B860M-K-CSM includes two M.2 Key M slots for compatible 2242, 2260, and 2280 SSDs. The primary M.2 slot supports PCIe 5.0 x4, while the secondary slot supports PCIe 4.0 x4. This gives builders flexibility to install a high-performance NVMe SSD for the operating system and applications while using the second slot for additional storage.

The board also provides four SATA 6Gb/s ports for compatible SATA SSDs and hard drives. Intel Rapid Storage Technology supports SATA RAID 0, 1, 5, and 10 configurations, subject to the supported drive arrangement and software requirements.

When selecting an SSD, confirm the drive's interface and supported form factor. An M.2 connector does not automatically mean every M.2 drive will operate at the same speed; performance depends on the SSD and the interface supported by the selected slot.

Realtek 2.5Gb LAN for High-Speed Networking

The integrated Realtek 2.5Gb Ethernet controller offers wired networking at up to 2.5 gigabits per second under compatible network conditions. This can benefit large file transfers, local network storage, shared work files, and gaming setups where the router or switch and connected devices support the higher link speed.

ASUS LANGuard is also included as part of the motherboard's networking and protection features. A wired Ethernet connection can provide a practical alternative to Wi-Fi for desktop users who prioritise consistent connectivity.

HDMI 2.1 and DisplayPort 1.4 Connectivity

The motherboard features one HDMI 2.1 port and one DisplayPort 1.4 output, each supporting up to 4K at 60Hz under the specified conditions. These connections allow users to connect compatible displays when the installed processor provides the necessary integrated graphics.

Display output capability depends on the processor and its graphics support. If you plan to use a dedicated graphics card, connect your monitor to the graphics card's outputs when appropriate rather than assuming the motherboard display ports will be active in every configuration.

USB Ports and Expansion Options

The Asus PRIME B860M-K-CSM provides six rear USB ports, including one USB 10Gbps Type-A port, two USB 5Gbps Type-A ports, and three USB 2.0 Type-A ports. Internal headers can support additional front-panel USB connections, including a USB Type-C connector and expansion for additional USB Type-A ports, depending on the computer case.

For expansion, the motherboard includes one PCIe 4.0 x16 slot and two PCIe 4.0 x1 slots. These can accommodate compatible graphics and expansion devices according to their interface, physical dimensions, and system requirements.

Audio Quality and ASUS Protection Features

The integrated Realtek 7.1-channel High Definition Audio CODEC supports audio playback up to 24-bit/192kHz, with audio shielding, premium audio capacitors, jack detection, and front-panel jack retasking. A compatible chassis with an HD audio front-panel module is required for the specified 7.1-channel output configuration.

ASUS 5X PROTECTION III includes features such as DIGI+ VRM, overvoltage protection, SafeSlot Core+, LANGuard, and stainless-steel back I/O. The board also includes a VRM heatsink design, Q-LED Core troubleshooting support, Q-DIMM, Q-Slot, and ProCool features to assist with building and maintaining a desktop system.

For compatible lighting setups, Aura RGB and Addressable Gen 2 headers allow supported lighting devices to be connected and controlled through compatible ASUS software. Check the lighting device's voltage, connector type, and pin configuration before connecting it.

Who Should Buy the Asus PRIME B860M-K-CSM?

Office and Business Desktop PCs

This motherboard is suitable for compatible Intel desktop systems used for office applications, business software, browsing, video meetings, and general productivity. Its compact size and modern memory and storage options make it practical for a range of desktop configurations.

Programming and Software Development

Developers can build a desktop around a supported Intel Core Ultra processor, DDR5 memory, and NVMe storage for coding, testing applications, running development tools, and managing multiple projects. Memory capacity should be selected according to the demands of the intended software and workload.

Gaming Desktop Builds

The PCIe x16 expansion slot allows installation of a compatible dedicated graphics card, making this motherboard an option for gaming PCs. Actual gaming performance depends mainly on the selected processor, graphics card, memory configuration, cooling, and game requirements rather than the motherboard alone.

Content Creation and Multitasking

With support for fast NVMe storage and up to 128GB of DDR5 memory, the motherboard can form part of a system for photo editing, media work, and demanding multitasking. Choose the processor, graphics hardware, memory, and storage based on the specific applications you use.

Asus PRIME B860M-K-CSM Buying Guide

Before buying the Asus PRIME B860M-K-CSM LGA 1851 micro-ATX Motherboard in Bangladesh, consider the following compatibility points:

• Processor: Choose a supported Intel Core Ultra Series 2 processor with the LGA 1851 socket.
• Memory: Purchase compatible DDR5 desktop memory. This board has two DIMM slots, so plan the memory capacity you need before buying.
• Storage: Choose compatible M.2 NVMe SSDs or SATA drives according to your storage requirements.
• Computer case: Make sure the case supports the micro-ATX form factor and has adequate clearance for your cooler and graphics card.
• Power supply: Select a suitable PSU for the complete system, including the processor and any dedicated graphics card.
• Cooling: Confirm that the CPU cooler supports LGA 1851 and fits the case.
• Display: Verify processor graphics support if you intend to use the motherboard's HDMI or DisplayPort outputs.
• Warranty: Check the applicable local warranty terms and service conditions before purchase.

Asus PRIME B860M-K-CSM Price in Bangladesh

The Asus PRIME B860M-K-CSM motherboard is an option for buyers in Bangladesh planning a new Intel desktop PC with DDR5 memory, modern NVMe storage, and 2.5Gb Ethernet. The current price may vary with availability, stock, and retailer offers. Check the latest listed price at Potaka IT before making your purchase.

The product carries a stated three-year manufacturing warranty in the supplied product information. Confirm the warranty coverage and conditions with the seller at the time of purchase.

Frequently Asked Questions

Which processors are compatible with the Asus PRIME B860M-K-CSM?

The motherboard supports Intel Core Ultra Processors (Series 2) using the LGA 1851 socket. Check ASUS's official CPU support list for exact processor compatibility and BIOS requirements.

How much RAM does the Asus PRIME B860M-K-CSM support?

It supports up to 128GB of DDR5 memory across two DIMM slots. Memory speeds up to 8800+ MT/s are supported through overclocking, subject to processor and memory compatibility.

Does the Asus PRIME B860M-K-CSM support PCIe 5.0 SSDs?

Yes. Its primary M.2 slot supports PCIe 5.0 x4 SSDs, while the second M.2 slot supports PCIe 4.0 x4 SSDs. Both slots support compatible 2242, 2260, and 2280 M.2 drives.

Does this motherboard have built-in Wi-Fi?

The listed specifications do not identify built-in Wi-Fi or Bluetooth. It includes Realtek 2.5Gb Ethernet for wired networking. Check the official specifications before purchasing if wireless connectivity is essential.

Can I use a dedicated graphics card with this motherboard?

Yes. The board has one PCIe 4.0 x16 slot for a compatible graphics card. Check the graphics card's dimensions, power requirements, and case clearance before installation.

Can I connect two monitors to the motherboard?

The board has one HDMI 2.1 port and one DisplayPort 1.4 port. Multiple-display support depends on the installed processor's graphics capabilities and the connected displays.

What storage options are available?

The motherboard provides two M.2 slots and four SATA 6Gb/s ports. You can configure compatible NVMe SSDs and SATA storage devices according to your needs.

Is the Asus PRIME B860M-K-CSM suitable for a compact PC?

Yes. Its micro-ATX form factor measures 24.4 × 22.2 cm, making it suitable for cases that support micro-ATX motherboards. Verify component clearance before assembling the system.

What is the warranty of the Asus PRIME B860M-K-CSM motherboard?

The supplied product information states a three-year manufacturing warranty. Confirm the applicable warranty terms with the seller in Bangladesh.

Why Consider the Asus PRIME B860M-K-CSM?

The Asus PRIME B860M-K-CSM combines Intel Core Ultra Series 2 compatibility, DDR5 memory support, dual M.2 storage, 2.5Gb Ethernet, and a compact micro-ATX layout. It is worth considering for a modern productivity desktop or a gaming system built with compatible components. Review the processor, memory, storage, case, and power requirements before purchasing to ensure that the complete PC configuration meets your needs.