ASRock B850 Pro-A WiFi / Motherboard / ATX / Socket AM5 / AMD B850 Chipset / USB-C 3.2 Gen 2x2, USB-C 3.2 Gen 1, USB 3.2 Gen 1, USB-C 3.2 Gen2 / 2.5 Gigabit LAN, Wi-Fi 6E, Bluetooth / onboard graphics (CPU required) / HD Audio (8-chann | 90-MXBQN0-A0UAYZ

Product Features
- Flexible expansion options
The motherboard includes a total of four PCIe x16 slots and multiple M.2 slots, allowing for various expansion capabilities tailored to both storage and graphics needs. - Enhanced thermal management
Featuring a VRM heatsink design and an enlarged chipset heatsink, this motherboard ensures efficient cooling to maintain optimal performance during intensive tasks. - User-friendly design
The DIY-friendly layout incorporates reinforced PCIe slots and an 8-layer PCB for improved performance and stability, simplifying the assembly process for users. - Advanced BIOS features
With AMI UEFI BIOS, users can enjoy intuitive control over their system settings, ensuring a streamlined experience in tuning and managing system performance.
Special Features
- Support for AMD Ryzen 7000/8000/9000 Series processors
- Up to 4000 MHz DDR5 RAM speed with dual-channel architecture
- Multiple USB ports including USB-C for versatile connectivity
- Integrated 2.5 Gigabit Ethernet and Wi-Fi 6E for fast networking
- Features like BIOS FlashBack and Instant Flash for user-friendly setup
Product Specification
Product Type | Motherboard - ATX |
Chipset Type | AMD B850 |
Processor Socket | Socket AM5 |
Max Processors Qty | 1 |
Compatible Processors | (supports Ryzen 7000/8000/9000 Series) |
Supported RAM | Supported RAM |
Max Size | 256 GB |
Technology | DDR5 |
Bus Clock | 4000 MHz (O.C.) |
Supported RAM Integrity Check | Non-ECC |
Registered or Buffered | Unbuffered |
Features | Dual channel memory architecture, AMD EXPO technology, Intel Extreme Memory Profiles (XMP) |
Audio | Audio |
Type | HD Audio (8-channel) |
Audio Codec | Realtek ALC897 |
Compliant Standards | High Definition Audio |
LAN | LAN |
Network Controller | Dragon RTL8125BG |
Network Interfaces | 2.5 Gigabit Ethernet, 802.11a/b/g/n/ac/ax (Wi-Fi 6E), Bluetooth 5.2 |
Expansion / Connectivity | Expansion / Connectivity |
Expansion Slots | 1 x CPU 4 x DIMM 288-pin 1 x PCIe 5.0 x16 1 x PCIe 4.0 x16 (x4 mode) 1 x M.2 socket (Key E, for wireless module) 3 x M.2 socket (2280 M.2 Key M slot) 1 x M.2 socket (2230/2242/2260/2280/22110 M.2 Key M slot) |
Storage Interfaces | SATA-600 -connectors: 4 x 7pin Serial ATA - RAID 0 / RAID 1 PCIe 5.0 -connectors: 1 x M.2 - RAID 0 / RAID 1 / RAID 10 PCIe 4.0 -connectors: 2 x M.2 - RAID 0 / RAID 1 / RAID 10 PCIe 3.0 -connectors: 1 x M.2 - RAID 0 / RAID 1 / RAID 10 |
Interfaces | 1 x HDMI 1 x USB-C 3.2 Gen 2 1 x USB-C 3.2 Gen 1 4 x USB 3.2 Gen 1 6 x USB 2.0 1 x LAN (2.5Gigabit Ethernet) 1 x microphone - mini-jack 1 x audio line-in - mini-jack 1 x audio line-out - mini-jack 2 x aerial |
Internal Interfaces | 1 x USB-C 3.2 Gen 2x2 - header 2 x USB 3.2 Gen 1 - header 3 x USB 2.0 - header 1 x audio - header 1 x SPI - header |
Power Connectors | 24-pin main power connector, 2 x 8-pin ATX12V connectors |
Features | Features |
BIOS Type | AMI |
BIOS Features | UEFI BIOS |
Hardware Features | 14+2+1 Phase Power Design, 80A Power Stage, Dr.MOS MOSFET, BIOS FlashBack button, ASRock Auto Driver Installer, ASRock POST Status Checker (PSC), ASRock EZ Mode, ASRock Full HD UEFI, ASRock Instant Flash, Hi-Density Power Connectors, 8 Layer PCB, aluminium heatsink design, ASRock Polychrome RGB, DIY Friendly Design, reinforced PCIe slots, VRM heatsink design, Enlarged Chipset Heatsink, Surface Mount Technology (SMT) |
Miscellaneous | Miscellaneous |
Included Accessories | IO shield, 2 x ASRock WiFi 2.4/5/6 GHz Antennas |
Cables Included | 2 x Serial ATA cable |
Software Included | ASRock A-Tuning, ASRock Dragon 2.5G LAN Software, ASRock Polychrome SYNC |
Compliant Standards | FCC, ErP Ready, EuP Ready |
Width | 30.5 cm |
Depth | 24.4 cm |
Features - Asrock - 90-MXBQN0-A0UAYZ
- Socket AM5