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

Name: Asus PRIME B850-PLUS-CSM 90MB1LC0-M0EAYC
Brand: Asus

Photos - Motherboard Asus PRIME B850-PLUS-CSM

Photos ₆

How to buy

from £90.85 up to £195.19

Compare prices ₁₂ →

When you make a purchase through links on our site, we may receive a affiliate commission.

Asus PRIME B850-PLUS-CSM

2025 Prime-CSM (business)M.2 cooling no backlight 2.5 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
Features	for home/office
Socket	AM5
Form factor	ATX
Power phases	11 / 8+2+1 /
VRM heatsink
Size (HxW)	305x244 mm


Chipset
Chipset	AMD B850
BIOS	Ami
UEFI BIOS


RAM
DDR5	4 slot(s)
Memory module	DIMM
Operation mode	2 channel
Max. clock frequency	8000 MHz
Max. memory	256 GB
EXPO support


Drive interface
SATA 3 (6Gbps)	4
M.2 connector	3
M.2	2xPCIe 4x, 1xPCIe 2x
M.2 version	1x5.0, 2x4.0
M.2 SSD cooling
Integrated RAID controller


Expansion slots
PCIe 16x slots	4 pcs
PCIe support	5.0
Steel PCIe connectors


Internal connections
TPM connector
USB-A 2.0	3 pcs
USB-A 5Gbps	1 pcs
USB-C 5Gbps	1 pcs
ARGB LED strip	3

Video outputs
HDMI output
HDMI version	v2.1
DisplayPort
DisplayPort version	v.1.4


Integrated audio
Audiochip	Realtek
Sound (channels)	7.1


Network interfaces
LAN (RJ-45)	2.5 Gbps
LAN ports	1
LAN controller	Realtek


External connections
USB-A 2.0	2 pcs
USB-A 5Gbps	2 pcs
USB-A 10Gbps	3 pcs
USB-C 10Gbps	1 pcs
BIOS FlashBack


Power connectors
Main power socket	24-pin
CPU power	8+4-pin
Fan power connectors	7
CPU Fan 4-pin	2
CPU/Water Pump Fan 4-pin	1
Chassis/Water Pump Fan 4-pin	4


Official Website	asus.com
Added to E-Catalog	May 2025
P/N	90MB1LC0-M0EAYC

E-Catalog UK editor, Motherboards

Valerii Lenko, edited 10.11.2025

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Asus 2026 - new arrivals, bestsellers, and the most relevant models Asus.

How to choose a motherboard?Motherboard is the main part of any computer. Here's how to choose the right one for work, play and entertainment

Buy Asus PRIME B850-PLUS-CSM

All prices 12 →

When you make a purchase through links on our site, we may receive a affiliate commission.


	Asus Prime B850PlusCsm Socket 1851H810Ddr5SAta 6GbSMicro Atx eBay.co.uk Delivery: in United Kingdom Report	£90.85 Buy in shop

	ASUS PRIME B850-PLUS-CSM ATX AMD Socket AM5 Motherboard 90MB1LC0-M0EAYC Boost reliability with ASUS PRIME B850-PLUS-CSM AM5 socket, DDR5 memory and business stability. Buy today at Box Store with... morePayPal Pay in 3. Box.co.uk Delivery: to United Kingdom Report	£119.99 Buy in shop

	ASUS PRIME B850-PLUS-CSM AM5 DDR5 PCIe 5.0 ATX Motherboard Scan.co.uk Delivery: to United Kingdom Report	£119.99 Buy in shop

	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 Tradeinn.com Delivery: in United Kingdom Report	£127.99 Buy in shop

	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. Processor manufacturer. AMD. Processor socket. Socket AM5. Compatible processor series. AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series. Memory. Supported memory types. DDR5-SDRAM. Number of memory slots. 4. Memory slots type. DIMM. Memory channels. Dual-channel. ECC сompatibility. ECC & Non-ECC. Maximum internal memory. 256 GB. Unbuffered memory. Yes. Storage controllers. Supported storage drive types. HDD & SSD. Supported storage drive interfaces. M.2, SATA III. Number of storage drives supported. 7. Number of HDDs supported. 4. RAID support. Yes. RAID levels. 0, 1, 5, 10. Graphics. Parallel processing technology support. Not supported. Internal I/O. USB 2.0 connectors. 2. USB 3.2 Gen 1 (3.1 Gen 1) connectors. 2. Number of SATA III connectors. 4. S/PDIF out connector. Yes. Front panel audio connector. Yes. ATX Power connector (24-pin). Yes. CPU fan connector. Yes. Number of CPU fan connectors. 1. Number of chassis fan connectors. 4. Chassis intrusion connector. Yes. EPS power connector (8-pin). Yes. Number of water pump connectors. 1. 12V power connector. Yes. Thunderbolt headers. 1. Number of COM connectors. 1. RGB LED pin header. Yes. Number of RGB LED pin headers. 3. Rear panel I/O ports. USB 2.0 ports quantity. 2. USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity. 2. USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity. 3. USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity. 1. Ethernet LAN (RJ-45) ports. 1. HDMI ports quantity. 1. DisplayPorts quantity. 1. Line-in. Yes. Microphone in. Yes. USB connector type. USB Type-A, USB Type-C. Network. Ethernet LAN. Yes. Ethernet interface type. 2.5 Gigabit Ethernet. Wi-Fi. No. Top Wi-Fi standard. Not available. Features. Component for. PC. Motherboard form factor. ATX. Motherboard chipset family. AMD. Motherboard chipset. AMD B850. Audio output channels. 7.1 channels. Product colour. Multicolour. Cooling type. Passive. Windows operating systems supported. Windows 10 x64, Windows 11. Expansion slots. PCI Express x16 (Gen 4.x) slots. 1. PCI Express x16 (Gen 5.x) slots. 1. Number of M.2 (M) slots. 3. 1st M.2 largest key size. 22110. 1st M.2 highest PCI Express generation. 5.0. BIOS. BIOS type. UEFI AMI. BIOS memory size. 256 Mbit. Packaging data. Package width. 353 mm. Package Backtotheoffice.co.uk Delivery: in United Kingdom Report	£169.99 Buy in shop