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Asus PRIME B850-PLUS-CSM (90MB1LC0-M0EAYC)

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Asus PRIME B850-PLUS-CSM
2025Prime-CSM (business)M.2 coolingno backlight2.5 Gbps
Towards:home / office
Form Factor:ATX
Socket:AM5
Chipset:AMD B850
BIOS:Ami
RAM slots:DDR5 4 sl
RAM form factor:DIMM
RAM clock:8000 MHz
Sound (channels):7.1
Connectors:HDMI, M.2
Additional connectors:DisplayPort
Power connector:24-pin
Processor power:8+4-pin
CSM is a model for corporate users. Customers of CSM products receive the ASUS Control Centre administration software.
All specifications
Specifications PRIME B850-PLUS-CSM
Main
Featuresfor home/office
SocketAM5
Form factorATX
Power phases11 / 8+2+1 /
VRM heatsink
Size (HxW)305x244 mm
Chipset
ChipsetAMD B850
BIOSAmi
UEFI BIOS
RAM
DDR54 slot(s)
Memory moduleDIMM
Operation mode2 channel
Max. clock frequency8000 MHz
Max. memory256 GB
EXPO support
Drive interface
SATA 3 (6Gbps)4
M.2 connector3
M.22xPCIe 4x, 1xPCIe 2x
M.2 version1x5.0, 2x4.0
M.2 SSD cooling
Integrated RAID controller
Expansion slots
PCIe 16x slots4 pcs
PCIe support5.0
Steel PCIe connectors
Internal connections
TPM connector
USB-A 2.03 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 2.02 pcs
USB-A 5Gbps2 pcs
USB-A 10Gbps3 pcs
USB-C 10Gbps1 pcs
BIOS FlashBack
Power connectors
Main power socket24-pin
CPU power8+4-pin
Fan power connectors7
CPU Fan 4-pin2
CPU/Water Pump Fan 4-pin1
Chassis/Water Pump Fan 4-pin4
Official Websiteasus.com
Added to E-CatalogMay 2025
P/N
90MB1LC0-M0EAYC

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Asus Prime B850PLUSCSM

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Asus 90MB1LC0-M0EAYC

Unlock the next generation of performance with the ASUS PRIME B850-PLUS-CSM, an ATX motherboard meticulously engineered for s... moretability, performance, and extensive connectivity. As a cornerstone for your next PC build, this motherboard provides the ultimate foundation for AMD´s latest processors, making it the perfect choice for PC DIY enthusiasts, gamers, and professionals who demand uncompromising quality and future-proof features. Built on the advanced Socket AM5 platform, it´s ready to harness the full power of cutting-edge technology. This board is designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications and complex workloads.Leveraging the power of the AMD chipset, this motherboard delivers robust performance and reliability. It supports the latest DDR5 memory modules, enabling breakthrough speeds and bandwidth for multitasking and data-intensive applications. Its intelligent cooling design, featuring comprehensive heatsinks and advanced fan controls, ensures your system remains cool and stable even under the most demanding workloads. For storage, it offers a versatile combination of M.2 slots (supporting both M2 SATA and NVMe protocols) and traditional SATA ports, giving you the flexibility to build a fast and expansive storage array. The form factor is a standard ATX, ensuring compatibility with a wide range of PC cases. The motherboard relies on a wired connection, offering users the choice to install their own wireless solution, thus avoiding integrated No Connectivity limitations. This motherboard belongs to the >8300 series of ASUS products.Prime B850-PLUS-CSM.ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors.The PRIME B850-PLUS-CSM 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.As part of the ASUS Corporate Stable Model (CSM) program, the PRIME B850-PLUS-CSM is an ideal choice for businesses and organizations. The CSM program guarantees a stable supply for up to 36 months, advanced EOL notifications, and includes the ASUS Control Center Express software for streamlined IT endpoint management. This focus on long-term stability and manageability reduces the total cost of ownership and simplifies fleet deployment and maintenance, making it a smart, reliable investment.ASUS PRIME B850-PLUS-CSM.Processor manufacturer:AMD, Processor socket:Socket AM5, Compatible processor series:AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series.Supported memory types:DDR5-SDRAM, Maximum internal memory:256 GB, Memory slots type:DIMM.Supported storage drive interfaces:M.2, SATA III, Supported storage drive types:HDD & SSD, RAID levels:0, 1, 5, 10.USB connector type:USB Type-A, USB Type-C.Ethernet interface type:2.5
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ASUS PRIME B850-PLUS-CSM AM5 DDR5 PCIe 5.0 ATX Motherboard

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£161.99
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ASUS PRIME B850-PLUS-CSM ATX AMD Socket AM5 Motherboard 90MB1LC0-M0EAYC

ASUS B850-PLUS-CSM Motherboard ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD... moreRyzen™ 9000 series processors. The PRIME B850-PLUS-CSM 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 Corporate Stable Model ASUS Corporate Stable Model (CSM) is a commercial program designed to provide stable and reliable motherboards. Offering up to 36-month product lifecycle support and 6-month end-of-life notice to allow sufficient lead times for your organization to get ready for product transitions. Each purchase of an ASUS CSM motherboard comes with ASUS Control Center Express - server-grade IT management software. ASUS Control Center Express ASUS Control Center Express is an integrated IT monitoring and management software designed to deploy faster, simplify IT operations and improve productivity with comprehensive control and user-friendly functions. ASUS Control Center Express is compatible with over 100 ASUS motherboards to provide a high-quality, TCO-optimized solution for your business needs. 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 B850-PLUS-CSM 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 B850-PLUS-CSM 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 B850-PLUS-CSM offers extensive AMD Extended Profiles for Overclocking (EXPO™) support and a wide array of UEFI settings for further performance tweaks. Three M.2 slots (up to 128 Gbps) PRIME B850-PLUS-CSM offers a total of three M.2 slots, including one that supports data-transfer speeds of up to 128 Gbps via PCIe 5.0, and two that support PCIe 4.0. This enables quicker boot-up and app load times with OS or application drives. Cooler by Design The PRIME B850-PLUS-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
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ASUS PRIME B850-PLUS-CSM AMD B850 Socket AM5 ATX 90MB1LC0-M0EAYC

AMD Socket AM5 AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series. PC ATX AMD B850 7.1 channels. DDR5-SDRAM... more4 DIMM Maximum internal memory: 256 GB. HDD & SSD M.2, SATA III RAID support Number of storage drives supported: 7. BIOS type: UEFI AMI 256 Mbit. 2.5 Gigabit Ethernet. Prime B850-PLUS-CSM. ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B850-PLUS-CSM 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.. Processor. Compatible processor series. AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series. Processor socket. Socket AM5. Processor manufacturer. AMD. Memory. Unbuffered memory. Yes. Maximum internal memory. 256 GB. ECC сompatibility. ECC & Non-ECC. Memory channels. Dual-channel. Memory slots type. DIMM. Number of memory slots. 4. Supported memory types. DDR5-SDRAM. Storage controllers. RAID levels. 0, 1, 5, 10. RAID support. Yes. Number of storage drives supported. 7. Number of HDDs supported. 4. Supported storage drive interfaces. M.2, SATA III. Supported storage drive types. HDD & SSD. Graphics. Parallel processing technology support. Not supported. Internal I/O. Number of RGB LED pin headers. 3. RGB LED pin header. Yes. Number of water pump connectors. 1. Number of COM connectors. 1. Thunderbolt headers. 1. 12V power connector. Yes. EPS power connector (8-pin). Yes. Chassis intrusion connector. Yes. Number of chassis fan connectors. 4. Number of CPU fan connectors. 1. CPU fan connector. Yes. ATX Power connector (24-pin). Yes. Front panel audio connector. Yes. S/PDIF out connector. Yes. Number of SATA III connectors. 4. USB 3.2 Gen 1 (3.1 Gen 1) connectors. 2. USB 2.0 connectors. 2. Rear panel I/O ports. USB connector type. USB Type-A, USB Type-C. Microphone in. Yes. Line-in. Yes. DisplayPorts quantity. 1. HDMI ports quantity. 1. Ethernet LAN (RJ-45) ports. 1. USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity. 1. USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity. 3. USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity. 2. USB 2.0 ports quantity. 2. Network. Wi-Fi. No. Ethernet interface type. 2.5 Gigabit Ethernet. Ethernet LAN. Yes. Features. Windows operating systems supported. Windows 10 x64, Windows 11. Cooling type. Passive. Product colour. Multicolour. Audio output channels. 7.1 channels. Motherboard chipset. AMD B850. Motherboard chipset family. AMD. Motherboard form factor. ATX. Component for. PC. Expansion slots. 1st M.2 highest PCI Express generation. 5.0. 1st M.2 largest key size. 22110. Number of M.2 (M) slots. 3. PCI Express x16 (Gen 4.x) slots. 1. BIOS. BIOS memory size. 256 Mbit. BIOS type. UEFI AMI. Packaging data. Package weight. 1.24 kg. Package height. 68 mm. Package depth. 273 mm. Package width. 353 mm. Weight &
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