Asrock B850M Challenger AMD B850 Socket AM5 micro ATX

SKU
90-MXBU30-A0UAYZ
Login for pricing
In Stock: 7 available
AM5, AMD B850, 4 x DDR5 DIMM, 512Mb AMI UEFI, Realtek ALC897, 2.5 Gigabit LAN, Micro ATX
More Information
SKU 90-MXBU30-A0UAYZ
Manufacturer Asrock
Availability In Stock
Forge the Future Dominate the Game
Challenger Series is all about fearless play, bold breakthroughs, and relentless evolution. Packed with solid specs at a gamer-friendly price, it’s the ultimate option for gamers.

DDR5 XMP & EXPO Support
Derived from the “built for stable and reliable” designing concept, ASRock does not compromise on any details. This motherboard is built with high quality materials, enthusiasts are able to enjoy the boost of DDR5 memory overclocking performance by enabling the pre-tested profiles. Make sure the memory modules are Intel® XMP/AMD EXPO™ capable and overclocking can be made so affordable, satisfying and absolutely no sweat at all.

PCIe Gen5 Blazing M.2
The Blazing M.2 accommodates the latest PCI Express 5.0 standard to perform twice the bandwidth compared to previous generation, with a breathtaking 128Gb/s transfer speed, it is ready to unleash the full potential of future ultrafast SSDs.

Aluminum Heatsink
The first thing that catches the eye is the optimized Aluminum Heatsink Design. Heatsinks are crucial for efficient heat dissipation, especially during heavy workloads like gaming or productivity tasks. Motherboard that built with heatsinks can effectively manage thermal performance, hence ensure system stability and durability effortlessly.

Dragon 2.5 Gb/s LAN
The intelligent 2.5Gb/s LAN platform is built for maximum networking performance for the demanding requirements of home networking, content creators, online gamers and high-quality streaming media. Boost networking performance up to 2.5X the bandwidth compared to the standard gigabit Ethernet, you’ll enjoy the faster and uncompromised connectivity experience for gaming, file transfers and backups.

More than USB Transfer Speed
Lightning Gaming Ports

Aimed for die hard gamers and enthusiasts! Lightning Gaming Ports are sourced from two different controller interfaces that assist gamers in connecting the high speed mice/keyboard with the lower jitter and latency!

Front USB 3.2 Gen1 Type-C
Front USB 3.2 Gen1 Type-C header delivers up to 5 Gbps data transfer rate and next generation reversible USB design to the front panel of computer case.

POLYCHROME RGB
This motherboard features onboard RGB headers and addressable RGB headers that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects.

SignalRGB
SignalRGB unifies your RGB devices, offering seamless customization, game-reactive effects, macro automation, and system monitoring. The official partnership empowers ASRock motherboards with advanced lighting control, enhances compatibility with a diverse range of RGB devices, and provides greater customization flexibility.

64MB BIOS Ready for Future AM5 Processors
64MB BIOS provides expanded firmware capacity to support future AM5 processors, offering long-term compatibility and enhanced update capability.

M.2 (KEY E) For WiFi
Besides the onboard LAN port, users may also choose wireless connections by M.2 (Key E) slot.

One-Click to AI Agents – ASRock Claw Quickset
ASRock Claw Quickset is a Windows desktop utility that simplifies the deployment of OpenClaw and local AI models. It automates installation, configuration, and environment setup, allowing users to start using AI with minimal technical knowledge.
Internal I/O
Number of M.2 (M) slots1
12V power connectorYes
Supported storage drive interfacesSATA III, M.2
USB 2.0 connectors2
USB 3.2 Gen 1 (3.1 Gen 1) connectors2
TPM connectorYes
Number of SATA III connectors4
Number of chassis fan connectors3
Front panel audio connectorYes
EPS power connector (8-pin)Yes
CPU fan connectorYes
ATX Power connector (24-pin)Yes
RGB LED pin headerYes
Number of CPU fan connectors2
Number of EPS power connectors (8-pin)1
Technical details
Motherboard chipset familyAMD
Motherboard chipsetAMD B850
Supported processor socketsSocket AM5
Parallel processing technology supportNot supported
HDMI version2.1
Motherboard form factormicro ATX
Component forPC
Audio
Audio output channels7.1 channels
Performance
Windows operating systems supportedWindows 10 x64, Windows 11 x64
Motherboard chipset familyAMD
Motherboard chipsetAMD B850
RAID levels0, 1, 10
Supported processor socketsSocket AM5
CertificationFCC, CE, ErP/EuP ready
Audio output channels7.1 channels
Motherboard form factormicro ATX
Component forPC
Processor
Processor manufacturerAMD
Compatible processor seriesAMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor socketsSocket AM5
Processor socketSocket AM5
Memory
Number of memory slots4
Memory slots typeDIMM
Supported memory typesDDR5-SDRAM
Memory channelsDual-channel
Supported memory clock speeds8000 MHz
Maximum internal memory256 GB
Unbuffered memoryYes
Supported memory clock speed (max)8000 MHz
ECC сompatibilityECC & Non-ECC
Storage controllers
Supported storage drive interfacesSATA III, M.2
RAID levels0, 1, 10
Number of storage drives supported6
RAID supportYes
Graphics
Parallel processing technology supportNot supported
Maximum resolution3840 x 2160 pixels
HDCPYes
HDCP version2.3
Rear panel I/O ports
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity6
USB 2.0 ports quantity6
Microphone inYes
HDMI version2.1
HDMI ports quantity1
Ethernet LAN (RJ-45) ports1
Line-inYes
Network
Ethernet LANYes
Wi-FiNo
LAN controllerDragon RTL8125BG
Ethernet interface type2.5 Gigabit Ethernet
Features
Windows operating systems supportedWindows 10 x64, Windows 11 x64
Motherboard chipset familyAMD
Motherboard chipsetAMD B850
Supported processor socketsSocket AM5
CertificationFCC, CE, ErP/EuP ready
Audio output channels7.1 channels
Motherboard form factormicro ATX
Component forPC
Audio chipRealtek ALC897
Expansion slots
Number of M.2 (M) slots1
PCI Express x1 (Gen 4.x) slots1
PCI Express x16 (Gen 4.x) slots1
PCI Express x16 (Gen 5.x) slots1
BIOS
BIOS typeUEFI AMI
BIOS memory size512 Mbit
Video
Maximum resolution3840 x 2160 pixels
HDCPYes
Certificates
CertificationFCC, CE, ErP/EuP ready
Software
Windows operating systems supportedWindows 10 x64, Windows 11 x64
Weight & dimensions
Width244 mm
Depth244 mm
Packaging content
Cables includedSATA
Antenna includedNo
Other features
PCI Express x1 (Gen 4.x) slots1

You may also be interested in

Compare Products
Product Asrock B850M Challenger AMD B850 Socket AM5 micro ATX Asrock B850M Challenger AMD B850 Socke... Login for pricing
ASUS TUF GAMING B650-PLUS WIFI AMD B650 Socket AM5 ATX
Bestseller
ASUS TUF GAMING B650-PLUS WIFI AMD B65... Login for pricing
ASUS PRIME B660M-A D4-CSM Intel B660 LGA 1700 micro ATX ASUS PRIME B660M-A D4-CSM Intel B660 L... Login for pricing
ASUS TUF GAMING A620M-PLUS WIFI AMD A620 Socket AM5 micro ATX
Hot Product
ASUS TUF GAMING A620M-PLUS WIFI AMD A6... Login for pricing
ASUS TUF GAMING B650M-E WIFI AMD B650 Socket AM5 micro ATX ASUS TUF GAMING B650M-E WIFI AMD B650... Login for pricing
GIGABYTE B650M S2H Motherboard - AMD Ryzen 9000 Series CPUs, 5+2+2 Phases VRM, up to 6400MHz DDR5 (OC), 1xPCIe 4.0 M.2, GbE LAN, USB 3.2 Gen 1 GIGABYTE B650M S2H Motherboard - AMD R... Login for pricing
SKU
90-MXBU30-A0UAYZ
90MB1BZ0-M0EAY0
90MB19K0-M1EAYC
90MB1F00-M0EAY0
90MB1FV0-M0EAY0
B650M S2H
Manufacturer
Asrock
ASUS
ASUS
ASUS
ASUS
Gigabyte
Component for
PC
PC
PC
PC
PC
PC
Processor manufacturer
AMD
AMD
Intel
AMD
AMD
AMD
Motherboard form factor
micro ATX
ATX
micro ATX
micro ATX
micro ATX
micro ATX
Processor socket
Socket AM5
Socket AM5
LGA 1700
Socket AM5
Socket AM5
Socket AM5
Supported memory types
DDR5-SDRAM
DDR5-SDRAM
DDR4-SDRAM
DDR5-SDRAM
DDR5-SDRAM
DDR5-SDRAM
Number of memory slots
4 to 6
4 to 6
4 to 6
4 to 6
4 to 6
2 to 3