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
| Specification | Details |
|---|---|
| CPU Support | AMD Socket AM5 Ryzen™ 9000, 8000 and 7000 Series Processors* |
| Chipset | AMD B850 |
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.
