AsRock MB AMD AM5 B850M Challenger WiFi

AM5, AMD B850, mATX
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Delivered between Tue, 29.9. and Wed, 30.9.
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Product details

The AsRock MB AMD AM5 B850M Challenger WiFi is a powerful Micro ATX motherboard designed for modern computer applications. It supports the AMD B850 chipset and offers a variety of features that are important for demanding users. With four RAM slots, it allows for the installation of DDR5 RAM, which supports a maximum overclocking of up to 8000 megahertz. This ensures high performance and fast data processing, essential for gaming and creative applications. The motherboard is equipped with PCIe 5.0, providing improved bandwidth for graphics cards and other expansion cards. Additionally, it features multiple USB-A ports and offers wireless transmission capabilities through integrated Wi-Fi. The compact mATX form factor allows for flexible integration into various cases, while the robust construction ensures stability and durability. This motherboard is an excellent choice for anyone looking to build a powerful and future-proof system.

Key specifications

Wireless transmission
Bluetooth, Wi-Fi
Number of memory modules (RAM)
4x
Memory type
DDR5-RAM
Internal connections
M.2 (2x), S-ATA III (4x)

General information

Item number
66104223
Manufacturer
AsRock
Category
Motherboards
Manufacturer No.
90-MXBU40-A0UAYZ
Release date
6.1.2026
Sales rank in Category Motherboards
194 of 1091
External links
Manufacturer's site (de)

Motherboard properties

Form factor
Micro ATX (mATX)
Socket
AM5
Chipset
AMD B850
Operating system compatibility
Windows 10, Windows 11 Home
BIOS type
UEFI AMI
Wireless transmission
Bluetooth, Wi-Fi
Wi-Fi standard
Wi-Fi 1 / 802.11b, Wi-Fi 2 / 802.11a, Wi-Fi 3 / 802.11g, Wi-Fi 4 / 802.11n, Wi-Fi 5 / 802.11ac, Wi-Fi 6 / 802.11ax, Wi-Fi 7 / 802.11be

Memory

Number of memory modules (RAM)
4x
Max. memory (RAM)
256 GB
Memory chip
DDR5 SDRAM
Max. RAM OC
8000 MHz
Transfer rate
8000 MT/s
Memory type
DDR5-RAM

Graphics properties

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

Network

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

Audio

Chip
Realtek ALC897
Audio channel
7.1 Channel

Data storage

RAID configuration
0, 1, 10

Internal interfaces

Internal connections
M.2 (2x), S-ATA III (4x)
Expansion slot
PCI Express x1 (1x), PCI Express x16 (2x)
PCI express version (max.)
5
Number of fan connector
2

Further connections

USB ports
USB-A, USB-C
Exact USB ports
USB-A 2.0 (2x), USB-A 3.2 Gen 1 (6x)

Power supply

Power connectors
24-pin ATX, 4-pin ATX 12V, 8-pin ATX 12V

Origin

Country of origin
China, Vietnam

Voluntary climate contribution

CO₂ emissions
95.84 kg
Climate contribution
CHF 2.28

Scope of delivery

Scope of delivery
Aerial

Product dimensions

Length
244 mm
Width
244 mm
Weight
1220 g

Package dimensions

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

30-day right of return
24 Months Warranty (Bring-in)
9 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
  • 3.Gigabyte
    2.6 %
  • 4.Biostar
    2.8 %
  • 5.AsRock
    3 %
  • 6.NZXT
    4.3 %
  • 7.Supermicro
    4.5 %

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.MSI
    3 days
  • 2.ASUS
    6 days
  • 2.Gigabyte
    6 days
  • 4.AsRock
    11 days
  • 4.Supermicro
    11 days

Return rate

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

Source: Digitec Galaxus
  • 2.Gigabyte
    5.3 %
  • 3.ASUS
    5.4 %
  • 4.AsRock
    6.1 %
  • 5.Sapphire
    7 %
  • 6.Supermicro
    9.6 %
Source: Digitec Galaxus