AsRock B850M Pro-A

AM5, AMD B850, mATX
3Ratings
BrandMore from AsRock
Delivered between Fri, 30.5. and Wed, 4.6.
2 items ordered

Product details

The ASROCK B850M Pro-A is a Micro-ATX mainboard with the mid-range AMD B850 chipset and AMD AM5 socket. It supports both the Ryzen 9000, 8000 and 7000 CPUs.

Graphics cards and NVMe SSDs are connected via PCIe 5.0 and data transfer rates of up to 10 Gbit/s are possible via USB 3.1.

To get the best out of your gaming PC, the CPU can be overclocked to higher clock rates via the mainboard. This ensures a stable power supply to the processor so that even high-end CPUs can operate at full power over a longer period of time. You can also fully utilise the DDR5 memory with overclocking. Just in case, the ASROCK B850M Pro-A offers you BIOS flashback.

Key specifications

Processor family
AMD 7000 Series
Memory type
DDR5 RAM
Number of memory modules (RAM)
4 x
Internal connection options
S-ATA III (4x)
Mainboard features
Front panel audio connector, RGB header
Item number
53885128

General information

Manufacturer
AsRock
Category
Motherboards
Manufacturer no.
90-MXBR8-A0UAYZ
Release date
6.1.2025
Sales rank in Category Motherboards
184 of 957

Motherboard properties

Form factor
Micro ATX (mATX)
Socket
AM5
Chipset
AMD B850
Mainboard features
Front panel audio connector, RGB header
Operating system compatibility
Windows, Windows 10
BIOS type
UEFI AMI

Processor

Processor family
AMD 7000 Series

Memory

Memory form factor
DIMM
Number of memory modules (RAM)
4 x
Max. memory (RAM)
256 GB
Memory chip
DDR5 SDRAM
Memory type
DDR5 RAM
RAM buffer
Unbuffered

Graphics properties

Video connections
DisplayPort (1x), HDMI (1x)
Video connection version
Display port 1.4, HDMI 2.1

Network

Network connections
RJ45 Gigabit Ethernet (1x)
Ethernet controller brand
Realtek
Ethernet controller
Dragon RTL8125BG
Max. port speed
2.50 Gbit/s

Audio

Chip
Realtek ALC897
Audio channel
7.1 Channel
Audio Connections
Headphones, Jack 3.5mm Line Out (3x)

Data storage

RAID configuration
0, 1, 10

Internal interfaces

Internal connection options
S-ATA III (4x)
Expansion slot
PCI Express x16 (1x), PCI Express x4 (1x)
PCI express version (max.)
5
Number of fan connector
5

Further connections

USB ports
USB-A, USB-C
Exact USB ports
USB-A 2.0 (4x), USB-A 3.2 Gen 1 (2x), USB-A 3.2 Gen 2 (1x), USB-C 3.2 Gen 1 (1x)

Power supply

Power connectors
24-pin ATX

Origin

Country of origin
China, Germany, Vietnam

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
1 piece, Sata Cables

Product dimensions

Length
244 mm
Width
244 mm

Package dimensions

Length
30 cm
Width
26 cm
Height
6 cm
Weight
1.21 kg

30-day right of return
24 Months Warranty (Bring-in)
8 additional offers

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Goes with

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
    2.6 %
  • 2.AsRock
    2.7 %
  • 2.Gigabyte
    2.7 %
  • 4.ASUS
    2.9 %
  • 5.Supermicro
    4 %

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
    2 days
  • 1.MSI
    2 days
  • 1.NZXT
    2 days
  • 4.Gigabyte
    5 days
  • 4.Supermicro
    5 days

Return rate

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

Source: Digitec Galaxus
  • 3.Gigabyte
    5.3 %
  • 4.Supermicro
    6.4 %
  • 5.NZXT
    6.7 %
  • 6.AsRock
    7.1 %
  • 7.Biostar
    9.1 %
Source: Digitec Galaxus