ASRock B850M Challenger AMD AM5 Socket Motherboard, Micro-ATX, 4x DDR5 Slots, 2x M.2 Socket, Fitted I/O Shield, 2.5GbE LAN, 1x HDMI Port

ASRock B850M Challenger Micro ATX Motherboard

The ASRock B850M Challenger is designed for users seeking superb productivity, rock-solid durability, and ultrafast connectivity in a compact micro ATX form factor. Built on the AMD B850 chipset and supporting the latest AMD Ryzen™ processors, it delivers modern performance, high-speed storage, and versatile connectivity.

Key Features

Superb Productivity

• PCIe Gen5 support for graphics and M.2 storage
• Dual Channel DDR5 memory support

Rock-Solid Durability

• 8+1+1 power phase design with Dr.MOS for VCore+MISC
• Pre-installed I/O shield

Ultrafast Connectivity

• 2.5G LAN
• ASRock Lightning Gaming Ports

EZ Update

• BIOS Flashback Button
• ASRock Auto Driver Installer

EZ Troubleshooter

• Convenient diagnostic design (details as listed in specs)

CPU & Chipset

Memory

• Dual Channel DDR5 Memory Technology
• 4 x DDR5 DIMM slots
• Supports DDR5 ECC/non-ECC, un-buffered memory up to 8000+(OC)*
• Max system memory capacity: 256 GB
• Supports XMP and EXPO memory profiles

BIOS

• 512Mb AMI UEFI Legal BIOS with GUI support

Graphics

• Integrated AMD RDNA™ graphics (actual support may vary by CPU)
• 1 x HDMI 2.1 TMDS/FRL 8G compatible port
• Supports HDR, HDCP 2.3
• Max resolution up to 4K 120Hz

Audio

• 7.1 CH HD Audio (Realtek ALC897 Audio Codec)
• Nahimic Audio

LAN

• 2.5 Gigabit LAN 10/100/1000/2500 Mb/s
• Dragon RTL8125BG controller

Dragon 2.5G LAN Software: - Smart Auto Adjust Bandwidth Control
- Visual user-friendly UI
- Visual network usage statistics
- Optimized default settings for Game, Browser, and Streaming modes
- User customized priority control

Wireless

• 1 x M.2 Socket (Key E), supports type 2230 PCIe WiFi/BT module

Expansion Slots

CPU: - 1 x PCIe 5.0 x16 slot (PCIE1), supports x16 mode*

Chipset: - 1 x PCIe 4.0 x1 slot (PCIE2)
- 1 x PCIe 4.0 x16 slot (PCIE3), supports x4 mode
- 1 x M.2 Socket (Key E) for WiFi/BT module (type 2230)

Storage

CPU: - 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode
- 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode

Chipset: - 4 x SATA3 6.0 Gb/s connectors

RAID Support

• RAID 0, RAID 1 and RAID 10 for SATA storage devices
• RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices

USB Connectivity

CPU: - Rear: 4 x USB 3.2 Gen1 Type-A (USB32_2, USB32_34, USB32_6)
- Rear: 1 x USB 2.0 (USB_2)

Chipset: - Front: 1 x USB 3.2 Gen1 Type-C
- 4 x USB 3.2 Gen1 Type-A (2 Rear: USB32_1, USB32_5; 2 Front)
- 5 x USB 2.0 (1 Rear: USB_1; 4 Front)

Internal Connectors & Headers

• 1 x Thermistor cable header
• 1 x SPI TPM header
• 1 x Power LED and speaker header
• 1 x RGB LED header*
• 3 x Addressable LED headers**
• 2 x CPU fan connectors (4-pin) with Smart Fan Speed Control***
• 3 x Chassis fan connectors (4-pin) with Smart Fan Speed Control***
• 1 x AIO pump fan connector (4-pin) with Smart Fan Speed Control***
• 1 x 24-pin ATX power connector
• 1 x 8-pin 12V power connector (Hi-Density Power Connector)
• 1 x 4-pin 12V power connector (Hi-Density Power Connector)
• 1 x Front panel audio connector
• 2 x USB 2.0 headers (support 4 USB 2.0 ports)
• 1 x USB 3.2 Gen1 header (supports 2 USB 3.2 Gen1 ports)
• 1 x Front panel Type-C USB 3.2 Gen1 header

Rear Panel I/O

• 2 x Antenna mounting points
• 1 x HDMI port
• 6 x USB 3.2 Gen1 ports (USB32_56 are Lightning Gaming Ports)
• 2 x USB 2.0 ports
• 1 x RJ-45 LAN port
• 1 x BIOS Flashback Button
• HD Audio jacks: Line In / Front Speaker / Microphone

Software & UEFI

Software: - ASRock Motherboard Utility (A-Tuning)
- ASRock Dragon 2.5G LAN Software
- ASRock Polychrome SYNC*

UEFI: - ASRock Full HD UEFI
- ASRock Auto Driver Installer
- ASRock Instant Flash

Accessories

• 2 x SATA data cables
• 1 x Screw for M.2 socket

Form Factor

• Micro ATX
• Dimensions: 9.6 in x 9.6 in (24.4 cm x 24.4 cm)

Operating System Support

• Microsoft Windows® 10 64-bit
• Microsoft Windows® 11 64-bit

Certifications

• FCC
• CE
• ErP/EuP ready (ErP/EuP ready power supply required)

* Additional notes and limitations may apply as per manufacturer documentation.