ASRock Motherboard B850 Pro-A AMD B850 AM5 Max256GB DDR5 ATX Retail
Status: Available
SKU: 294520
Vendor: ASRock
MPN: B850 PRO-A
UPC:
EAN: 4711581490185
B850 Pro-A
Pro-A series is designed for enhanced stability, durability, and efficiency, it offers reliable performance, user-friendly features and a streamlined aesthetic, making it ideal for daily computing needs.
PRO SERIES
Optimized for stability, durability, and efficiency. It combines reliable performance, user-friendly features and streamlined style for daily computing tasks.
Optimized VRM Design
14+2+1 Power Phase Design

Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.
Dr. MOS
Dr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications Compared to traditional discrete MOSFETs, it intelligently delivers higher current for each phase, thus providing improved thermal result and superior performance.
Hi-Density Power Connector
CPU overclocking requires higher current. ASRock Hi-Density Power Connectors are designed to withstand higher currents compared to traditional CPU and ATX power connectors, providing a more stable system and reducing the risk of fire during heavy overclocking.
8 Layer PCB
The 8 Layer PCB provides stable signal traces and power shapes delivering lower temperature and higher energy efficiency for memory overclocking Thus, its able to support the latest memory modules with most extreme memory performance
Unique Feature
Superb Productivity
- PCIe Gen5 (Graphics, M.2)
- Dual Channel DDR5
Rock-Solid Durability
- 14+2+1 Power Phase, 80A Dr.MOS for VCore+SOC+MISC
Ultrafast Connectivity
- 2.5G LAN
EZ Update
- BIOS Flashback Button
- ASRock Auto Driver Installer
EZ Troubleshooter
- ASRock Post Status Checker
CPU
- Supports AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series Processors
The availability of expansion slots may vary by CPU. Please refer to PCIe/M.2 Bandwidth Table for details.