Asus Prime B850M-K

The ASUS Prime B850M-K motherboard is a reliable and modern platform designed to support AMD Ryzen 9000, 8000, and 7000 series processors. Built on the AMD B850 chipset and featuring the AM5 socket, this motherboard provides a strong foundation for users looking to build or upgrade a high-performance system.

Designed in a compact micro-ATX form factor, the ASUS Prime B850M-K offers a balance between size and expandability, making it suitable for a wide range of PC builds, including gaming systems, productivity workstations, and everyday desktop setups.

Memory performance is one of the key highlights of this motherboard. It supports DDR5 memory with speeds reaching up to 8200+ MT/s (overclocked) for Ryzen 9000 series processors, ensuring fast data transfer and improved system responsiveness. With dual-channel memory architecture and support for AMD EXPO and ASUS AEMP profiles, users can easily optimize memory performance for better stability and speed.

For graphics and expansion, the ASUS Prime B850M-K includes a PCIe 5.0 x16 slot for Ryzen 9000 and 7000 series processors, allowing support for the latest GPUs with maximum bandwidth. Additional PCIe slots provide flexibility for expansion cards, making it suitable for various configurations.

Storage options are comprehensive, with support for two M.2 slots and four SATA ports. Depending on the processor, users can benefit from PCIe 5.0 or PCIe 4.0 speeds for high-performance SSDs, ensuring fast boot times and quick data access.

Networking is powered by a Realtek 2.5Gb Ethernet controller, providing fast and stable wired connectivity for gaming, streaming, and downloading. ASUS LANGuard technology enhances network reliability and protects against electrical surges.

The motherboard also offers a wide range of USB connectivity options, including high-speed USB 10Gbps and 5Gbps ports, along with front panel support for USB Type-C. This ensures compatibility with modern peripherals and devices.

Cooling and system stability are enhanced through ASUS thermal solutions, including VRM heatsinks and M.2 heatsinks, helping maintain optimal temperatures during heavy workloads. The board also includes multiple fan headers for efficient airflow management.

In terms of durability and reliability, ASUS integrates its 5X Protection III features, including DIGI+ VRM, SafeSlot, and overvoltage protection, ensuring long-term stability and component safety.

The ASUS Prime B850M-K also supports Aura Sync RGB, allowing users to customize lighting and synchronize it with other compatible components for a unified system appearance.

Overall, the ASUS Prime B850M-K is a well-rounded motherboard that combines modern features, strong performance, and reliable build quality, making it an excellent choice for building a future-ready AMD system.

Why Choose ASUS Prime B850M-K?

The ASUS Prime B850M-K motherboard is an ideal choice for users who want a stable and feature-rich platform for their AMD Ryzen system. It provides a combination of modern technology, expandability, and reliability that suits both gaming and professional use.

One of the main advantages of this motherboard is its support for the latest AM5 platform. This ensures compatibility with AMD Ryzen 9000, 8000, and 7000 series processors, allowing users to build a system that is ready for current and future upgrades.

The support for high-speed DDR5 memory is another major benefit. With speeds reaching up to 8200+ MT/s, users can achieve excellent performance in gaming, multitasking, and productivity tasks. The inclusion of EXPO and AEMP profiles makes it easy to optimize memory settings without manual tuning.

Expansion capabilities are also strong, with PCIe 5.0 support for modern graphics cards and high-speed storage devices. This ensures that the system can handle the latest hardware without limitations.

The motherboard’s storage options provide flexibility for different needs, including high-speed M.2 SSDs and traditional SATA drives. This allows users to build a system with both performance and storage capacity in mind.

Networking performance is enhanced with 2.5Gb Ethernet, offering faster and more stable connections compared to standard Gigabit LAN. This is especially useful for online gaming and large file transfers.

ASUS also focuses on durability and ease of use. Features such as BIOS FlashBack, Q-Design, and EZ DIY tools make installation and troubleshooting easier, even for less experienced users.

The integrated thermal solutions help maintain stable temperatures, ensuring consistent performance during extended use. This is important for users who run demanding applications or games for long periods.

In conclusion, the ASUS Prime B850M-K is a reliable and future-ready motherboard that offers strong performance, modern connectivity, and user-friendly features, making it a smart choice for building a powerful AMD system.

Specifications

Model

• PRIME B850M-K

CPU

• AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors*
• Supports up to AMD 170W CPU

Chipset

• AMD B850 Chipset

Memory

• 2 x DIMM slots, max. 128GB, DDR5 Supports up to
  • 8200+MT/s(OC) with Ryzen™ 9000 Series Processors,
  • 9600+MT/s(OC) with Ryzen™ 8000 Series Processors,
  • 8000+MT/s(OC) with Ryzen™ 7000 Series Processors,
• ECC and Non-ECC Un-buffered DIMM*
• Dual channel memory architecture
• Supports AMD Extended Profiles for Overclocking (EXPO™)
• ASUS Enhanced Memory Profile (AEMP)
  • Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration…
  • Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.

Graphics

• 1 x DisplayPort**
• 1 x HDMI™ port***
  • Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications.
• ** Supports max. 8K@30Hz as specified in DisplayPort 1.4.
• *** Supports 4K@60Hz as specified in HDMI 2.1.

Expansion Slots

• AMD Ryzen™ 9000 & 7000 Series Desktop Processors*
  • 1 x PCIe 5.0 x16 slot (supports x16 mode)
• AMD Ryzen™ 8000 Series Desktop Processors
  • 1 x PCIe 4.0 x16 slot (supports x8/x4 mode)**
• AMD B850 Chipset
  • 1 x PCIe 4.0 x16 slot (support x4 mode)
  • Please check the PCIe bifurcation table…
• ** Specifications vary by CPU types.

Storage

• Supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
• AMD Ryzen™ 9000 & 7000 Series Desktop Processors
  • M.2_1 slot (Key M), type 2280 (supports PCIe 5.0 x4 mode)
  • M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
• AMD Ryzen™ 8000 Series Desktop Processors
  • M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
  • M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4/x2 mode)*
• AMD B850 Chipset
  • 4 x SATA 6Gb/s ports
• AMD RAIDXpert2 Technology
  • Ryzen™ 9000 Series: RAID 0/1/5/10
  • Ryzen™ 8000 Series: RAID 0/1
  • Ryzen™ 7000 Series: RAID 0/1/10

Ethernet

• 1 x Realtek 2.5Gb Ethernet
• ASUS LANGuard

USB

• Rear USB (Total 8 ports)
  • 2 x USB 10Gbps ports (2 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 7 ports)
  • 1 x USB 5Gbps 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

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

Back Panel I/O Ports

• 2 x USB 10Gbps ports (2 x Type-A)
• 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 Realtek 2.5Gb Ethernet port
• 3 x Audio jacks
• 1 x BIOS FlashBack™ button
• 1 x PS/2 Keyboard/Mouse combo port

Form Factor

• micro-ATX Form Factor
• 9.6 inch x 8.7 inch ( 24.4 cm x 22.1 cm )

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