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Asus PRIME B850M-K (90MB1LV0-M0EAY0)

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Asus PRIME B850M-K
2025PrimeM.2 coolingno backlight2.5 Gbps
Towards:home / office
Form Factor:micro-ATX
Socket:AM5
Chipset:AMD B850
BIOS:Ami
RAM slots:DDR5 2 sl
RAM form factor:DIMM
RAM clock:9600 MHz
Sound (channels):7.1
Connectors:HDMI, M.2
Additional connectors:DisplayPort
Power connector:24-pin
Processor power:8-pin
All specifications
Specifications PRIME B850M-K
Main
Featuresfor home/office
SocketAM5
Form factormicro-ATX
Power phases11 / 8+2+1 /
Printed circuit board6-layer
VRM heatsink
Size (HxW)244x221 mm
Chipset
ChipsetAMD B850
BIOSAmi
UEFI BIOS
RAM
DDR52 slot(s)
Memory moduleDIMM
Operation mode2 channel
Max. clock frequency9600 MHz
Max. memory128 GB
EXPO support
Drive interface
SATA 3 (6Gbps)4
M.2 connector2
M.22xPCIe 4x
M.2 version1x5.0, 1x4.0
M.2 SSD cooling
Integrated RAID controller
Expansion slots
PCIe 16x slots2 pcs
PCIe modes16x/4x
PCIe support5.0
Steel PCIe connectors
Internal connections
USB-A 2.02 pcs
USB-A 5Gbps1 pcs
USB-C 5Gbps1 pcs
ARGB LED strip3
Video outputs
HDMI output
HDMI versionv2.1
DisplayPort
DisplayPort versionv.1.4
Integrated audio
AudiochipRealtek
Sound (channels)7.1
Network interfaces
LAN (RJ-45)2.5 Gbps
LAN ports1
LAN controllerRealtek
External connections
USB-A 2.04 pcs
USB-A 5Gbps2 pcs
USB-A 10Gbps2 pcs
PS/21
BIOS FlashBack
Power connectors
Main power socket24-pin
CPU power8-pin
Fan power connectors4
CPU Fan 4-pin1
Chassis/Water Pump Fan 4-pin3
Official Websiteasus.com
Added to E-CatalogMay 2025
P/N
90MB1LV0-M0EAY0

The information in the model description is for reference purposes.
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ASUS PRIME B850M-K DDR5 AMD B850 Micro-ATX Socket AM5 Motherboard 90MB1LV0-M0EAY0

ASUS B850M-K Motherboard ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen&... more#153; 9000 series processors. The PRIME B850M-K motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It's designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications. AI Advisor ASUS AI Advisor allows users to explore the functionality and advanced features of ASUS motherboards in a simple and straightforward way. Digital Power Design PRIME B850M-K features an 8+2+1 phase power design with discrete MOSFETs, ensuring efficient and stable power delivery for AMD processors plus steady performance for day-to-day use. Enhanced DDR5 Performance Comprehensive memory tuning options are the cornerstone of PRIME motherboards. The PRIME B850M-K maximizes the potential of your DDR5 modules, from entry-level to extreme-speed kits.2 For entry-level modules without EXPO™ support, ASUS Enhanced Memory Profile (AEMP) automatically detects memory chips and provides optimized profiles for enhanced performance. For those looking to surpass stock DDR5 speeds, the PRIME B850M-K offers extensive AMD Extended Profiles for Overclocking (EXPO™) support and a wide array of UEFI settings for further performance tweaks. Two M.2 slots (up to 128 Gbps) PRIME B850M-K offers a total of two M.2 slots, including one that supports data-transfer speeds of up to 128 Gbps via PCIe 5.0, and one that support PCIe 4.0. This enables quicker boot-up and app load times with OS or application drives. Cooler by Design The PRIME B850M-K 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. UEFI BIOS The UEFI interface delivers easy-to-use configuration options for PC beginners, and advanced features for veterans. ASUS DriverHub Simplify driver management with automatic detection, one-click installation and update for smooth, efficient system performance. Armoury Crate Customize Aura Sync RGB and control ASUS devices. Includes product registration and updates. Aura Sync Complete RGB lighting control for enthusiast systems, ensuring seamless synchronization with compatible hardware. Addressable Gen 2 RGB headers Three addressable Gen 2 headers detect LED counts on compatible RGB devices, automatically adjusting lighting effects accordingly. BIOS FlashBack™ BIOS FlashBack™
Box.co.uk
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£104.99
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ASUS PRIME B850M-K micro ATX motherboard - AMD B850 Socket AM5

Clove.co.uk
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£108.53
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ASUS PRIME B850M-K AMD B850 Socket AM5 micro ATX

ASUS PRIME B850M-K AMD B850 Socket AM5 micro ATX B850M-KASUS Prime series motherboards are expertly engineered to unleash the... morefull potential of AMD Ryzen™ 9000 series processors. The PRIME B850M-K motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready. offering the power and connectivity needed for demanding AI applications.
Pcnova.co.uk
Delivery: in United Kingdom
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£110.77
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ASUS PRIME B850M-K AMD B850 Socket AM5 micro ATX 90MB1LV0-M0EAY0

B850M-KASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series process... moreors. The PRIME B850M-K motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready. offering the power and connectivity needed for demanding AI applications. ASUS PRIME B850M-K AMD B850 Socket AM5 micro ATX
Gamingkit.co.uk
Delivery: in United Kingdom
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£110.77
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ASUS PRIME B850M-K AMD Socket AM5 AMD Ryzen 7000 Series AMD Ryzen 8000 Series AMD Ryzen 9000 Series Socket AM5 DDR5-SDRAM 12

  ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000... moreseries processors. The PRIME B850M-K motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready offering the power and connectivity needed for demanding AI applications.   - AMD B850 mATX motherboard - DDR5 - PCIe 5.0 Ready - Two M.2 slots - Realtek 2.5Gb Ethernet - DisplayPort - HDMI - Rear USB 10Gbps Type-A - Front USB 5Gbps Type-C - BIOS FlashBack - Aura Sync     Performance - AI Advisor - ASUS AI Advisor allows users to explore the functionality and advanced features of ASUS motherboards in a simple and straightforward way. - Digital Power Design - PRIME B850M-K features an 8+2+1 phase power design with discrete MOSFETs ensuring efficient and stable power delivery for AMD processors plus steady performance for day-to-day use. - Six-layer PCB design - The multi-layered printed circuit board design quickly dissipates heat around the voltage regulators to improve overall system stability and provide the CPU with more overclocking headroom. - Digi+ VRM control - The Digi+ voltage-regulator module (VRM) delivers real-time control over voltage droop automatically switching frequency and power-efficiency settings.   Enhanced Memory & Storage Performance - Enhanced DDR5 performance - Comprehensive memory tuning options are the cornerstone of PRIME motherboards. The PRIME B850M-K maximizes the potential of your DDR5 modules from entry-level to extreme-speed kits. For entry-level modules without EXPO™ support ASUS Enhanced Memory Profile (AEMP) automatically detects memory chips and provides optimized profiles for enhanced performance. For those looking to surpass stock DDR5 speeds the PRIME B850M-K offers extensive AMD Extended Profiles for Overclocking (EXPO™) support and a wide array of UEFI settings for further performance tweaks - Two M.2 slots (up to 128Gbps) - PRIME B850M-K offers a total of two M.2 slots including one that supports data-transfer speeds of up to 128 Gbps via PCIe 5.0 and one that support PCIe 4.0. This enables quicker boot-up and app load times with OS or application drives.         Cooler by design   The PRIME B850M-K 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
Quzo.co.uk
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£114.40
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Platform for a Limited Budget

The Asus PRIME B850M-K motherboard serves as an affordable foundation for building a mid-range gaming PC or other high-performance systems. The platform utilizes AMD B850 logic, which effectively unleashes the potential of modern processors, including the Ryzen AI series with current intelligent features. The board's concept with an 11-phase power system and full support for PCIe 5.0 is geared towards comfortable Full HD gaming with high detail, rich visual effects, and popular real-time image enhancement technologies (DLSS 4 / FSR 4, ray tracing, frame generation, upscaling). However, the choice of components is limited to a mid-performance level. Overall, the model offers a successful balance of price and capabilities, equipped with basic heatsinks for passive cooling and well-suited for combining work tasks and entertainment.

User-Friendly Interface

The manufacturer has implemented software and hardware tools that simplify the assembly and system setup process, making it manageable even for inexperienced users. Firmware updates are performed with a single BIOS FlashBack button, and installing components does not require tools. Connectors and slots are reinforced to protect against deformation during temperature changes and mechanical stress during assembly. System parameter optimization is achieved without complex manual settings thanks to intelligent technologies EXPO, AEMP, and DriverHub. The package is complemented by proprietary tools Fan Xpert 2+ and ASUS AI Advisor.

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