ASUS PRIME B850-PLUS-CSM

AM5, AMD B850, ATX
1Ratings
BrandMore from ASUS
Delivered between Tue, 7.4. and Wed, 8.4.
7 pieces in stock at supplier
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Product details

ASUS Prime series motherboards are expertly designed to realise the full potential of AMD Ryzen 9000 series processors. The PRIME B850-PLUS-CSM motherboard offers users and PC DIY builders a range of performance optimisations through intuitive software and firmware functions. It is designed to be advanced AI PC-ready, providing the performance and connectivity required for demanding AI applications.

Key specifications

Mainboard features
Front panel audio connector, Thunderbolt header, Trusted Platform Module
Number of memory modules (RAM)
4x
Internal connection options
M.2 PCIe (3x), S-ATA III (4x)

General information

Item number
57493475
Manufacturer
ASUS
Category
Motherboards
Manufacturer no.
90MB1LC0-M0EAYC
Release date
8.4.2025
Sales rank in Category Motherboards
344 of 1030

Motherboard properties

Form factor
ATX
Socket
AM5
Chipset
AMD B850
Mainboard features
Front panel audio connector, Thunderbolt header, Trusted Platform Module
Operating system compatibility
Windows 10, Windows 11 Home, Windows 11 Pro
BIOS type
UEFI AMI

Memory

Memory form factor
DIMM
Number of memory modules (RAM)
4x
Max. memory (RAM)
256 GB
Memory chip
DDR5-5200
Max. RAM OC
8000 MHz
RAM buffer
Unbuffered

Graphics properties

Video connections
DisplayPort (1x), HDMI (1x)

Network

Network connections
RJ45 2.5 Gigabit Ethernet (1x)
Max. port speed
2.50 Gbit/s

Data storage

RAID configuration
0, 1, 10

Internal interfaces

Internal connection options
M.2 PCIe (3x), S-ATA III (4x)
Expansion slot
PCI Express x16 (Gen 4) (1x), PCI Express x16 (Gen 5) (1x)
PCI express version (max.)
5
Number of fan connector
4

Further connections

USB ports
USB-A, USB-C
Exact USB ports
USB-A 2.0 (2x), USB-A 3.2 Gen 1 (2x), USB-A 3.2 Gen 2 (3x), USB-C 3.2 Gen 2 (1x)

Origin

Country of origin
Germany

Sustainability

Manufacturer commitment
RE100, SBTi

Voluntary climate contribution

CO₂ emissions
1579.07 kg
Climate contribution
CHF 7.85

Scope of delivery

Scope of delivery
Manual

Product dimensions

Length
244 mm
Width
305 mm
Height
48 mm
Weight
1030 g

Package dimensions

Length
45 cm
Width
12 cm
Height
35 cm
Weight
600 g

30-day right of return
36 Months Warranty (Bring-in)
14 additional offers

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Motherboards» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 1.MSI
    2.4 %
  • 2.ASUS
    2.5 %
  • 3.Gigabyte
    2.6 %
  • 4.AsRock
    2.9 %
  • 5.Supermicro
    3.2 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.AsRock
    4 days
  • 2.MSI
    6 days
  • 3.ASUS
    8 days
  • 4.Gigabyte
    10 days

Return rate

How often is a product of this brand in the «Motherboards» category returned?

Source: Digitec Galaxus
  • 1.MSI
    4.8 %
  • 2.Gigabyte
    5 %
  • 3.ASUS
    5.1 %
  • 4.AsRock
    5.9 %
  • 5.Biostar
    7.7 %
Source: Digitec Galaxus