The ASRock B850 Pro-A Wi-Fi motherboard displayed next to its sleek retail box

Full layout view of the ASRock B850 Pro-A Wi-Fi ATX board, showing all expansion slots and connectors.

Angled view of the ASRock B850 Pro-A Wi-Fi ATX motherboard, showing its clean silver and black design.

Top-down view of the ASRock B850 Pro-A Wi-Fi, detailing the AM5 socket, four DDR5 slots, and extensive M.2 layout.

A clear shot of the rear I/O panel on the ASRock B850 Pro-A Wi-Fi, featuring USB-C with DP-alt mode and Wi-Fi 6E.

ASRock B850 Pro-A WIFI DDR5 AM5 ATX Motherboard

Name: ASRock B850 Pro-A Wi-Fi | AM5 & PCIe 5.0 Motherboard
Brand: ASRock
SKU: 90-MXBQN-A0UAYZ
Price: 3421.00 ZAR
Availability: InStock

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R3421,00

CPU: Supports AMD Ryzen 9000, 8000 and 7000 Series Processors
Socket: AM5
Chipset: AMD B850
Memory: 4 x DIMM slots | Max. 256GB | DDR5 8000+(OC)
Storage: 4 x M.2 slots | 4 x SATA 6Gb/s ports
Expansion Slots: 1 x PCIe 5.0 x16 | 1 x PCIe 4.0 x16
Network: 1 x Ethernet 2.5 Gbps | Wi-Fi 6E (802.11axe) & Bluetooth v5.2
Warranty: 3 Years

Availability: 11 in stock SKU: 90-MXBQN-A0UAYZ Category: AMD Motherboards

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Description

ASRock B850 Pro-A Wi-Fi: Optimized for Stability and Speed

The ASRock B850 Pro-A Wi-Fi is a robust ATX motherboard designed for users who demand reliable performance, versatility, and a streamlined experience for daily computing and gaming. Built on the AMD B850 chipset for Ryzen 9000, 8000, and 7000 series processors, it features a powerful 14+2+1 Dr.MOS power design, high-speed PCIe 5.0 connectivity, and ultra-fast networking. Its blend of durability, expandability, and modern features makes it an excellent foundation for any high-performance build.

Unique Features

PCIe Gen5 (Graphics, M.2): Unlock next-generation performance with a PCIe 5.0 graphics card slot and a Blazing M.2 slot, offering double the bandwidth of the previous generation for the fastest GPUs and SSDs.
14+2+1 Power Phase, 80A Dr.MOS: A sturdy power delivery system with 80A Dr.MOS stages and 20K black capacitors provides smooth, efficient power to the CPU, ensuring stability and overclocking capability.
Wi-Fi 6E 802.11axe: Take advantage of the dedicated 6GHz spectrum for faster wireless speeds, lower latency, and less interference, delivering a superior networking experience for gaming and streaming.
Dragon 2.5 Gb/s LAN: The intelligent Dragon 2.5G LAN platform boosts networking performance up to 2.5X standard gigabit speeds, ensuring a stable and fast connection for content creation and online gaming.
USB Type-C (DP-alt Mode): A versatile rear USB Type-C port supports DisplayPort Alternate Mode, allowing you to transfer data, power devices, and output video to a monitor through a single cable.
Reinforced Steel Slot: The primary PCIe 5.0 slot is reinforced with extra anchor points and a stronger latch to safely support heavy, high-end graphics cards and ensure signal stability.

Quick Specs of the ASRock B850 Pro-A Wi-Fi

Specification	Details
CPU Support	Supports AMD Ryzen 9000, 8000 and 7000 Series Processors
Socket	AM5
Chipset	AMD B850
Memory Support	4 x DDR5 DIMMs \| up to 256GB \| DDR5 8000+(OC)
Storage Options	4 x M.2 slots \| 4 x SATA 6Gb/s ports
Display Ports	1 x HDMI \| 1 x USB Type-C (DP-alt)
USB Ports	1 x USB 3.2 Gen2x2 (Type-C) \| 2 x USB 3.2 Gen2 (Type-C) \| 6 x USB 3.2 Gen1 (Type-A) \| 9 x USB 2.0 (Type-A)
Expansion Slots	1 x PCIe 5.0 x16 \| 1 x PCIe 4.0 x16
LAN	Dragon 2.5G LAN
Wireless	Wi-Fi 6E (802.11axe) \| Bluetooth v5.2
Audio	Realtek ALC897 Codec
Form Factor	ATX (30.5 cm x 24.4 cm)

Check out full specifications under the Specs tab.

Why Choose This Product?

The ASRock B850 Pro-A Wi-Fi is an exceptional choice for builders seeking a feature-rich motherboard that doesn’t compromise on speed or durability. With a PCIe 5.0 M.2 slot and x16 slot, you are ready for the fastest SSDs and GPUs available. The 8-layer PCB ensures optimal signal integrity and lower temperatures for memory overclocking, while the abundant USB connectivity, including a 20Gbps front panel header, keeps all your devices connected at high speeds.

ASRock’s focus on usability shines through with features like the pre-installed I/O shield, BIOS Flashback button, and Auto Driver Installer, making system setup effortless. Whether you are a content creator needing fast transfer speeds or a gamer looking for a stable, lag-free connection via 2.5G LAN or Wi-Fi 6E, this motherboard delivers professional-grade performance and reliability.

Upgrade to a platform that blends power, speed, and stability with the ASRock B850 Pro-A Wi-Fi.

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, 802.11axe Wi-Fi 6E Module 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.
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. capacity of system memory: 256GB Supports Extreme Memory Profile (XMP) and EXTended Profiles for Overclocking (EXPO) memory modules
BIOS	256Mb 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, supports HDR, HDCP 2.3 and max. resolution up to 4K 120Hz 1 x USB 3.2 Gen1 Type-C, supports DP 1.4 HBR3 and max. resolution up to 4K 60Hz (DP-alt mode supports DP1.4a)
Audio	7.1 CH HD Audio (Realtek ALC897 Audio Codec)
LAN	2.5 Gigabit LAN 10/100/1000/2500 Mb/s Dragon RTL8125BG Supports Dragon 2.5G LAN Software Smart Auto Adjust Bandwidth Control Visual User Friendly UI Visual Network Usage Statistics Optimized Default Setting for Game, Browser, and Streaming Modes User Customized Priority Control
Wireless LAN	802.11axe Wi-Fi 6E Module Supports IEEE 802.11a/b/g/n/ac/ax/axe Supports Dual-Band 2×2 with extended 6GHz band* support 2 antennas to support 2 (Transmit) x 2 (Receive) diversity technology Supports Bluetooth 5.2 Supports MU-MIMO * Wi-Fi 6E (6GHz band) will be supported by Microsoft Windows 11. The availability will depend on the different regulation status of each country and region. It will be activated (for supported countries) through Windows Update and software updates once available. A 6GHz compatible router is required for 6E functionality.
Slots	CPU: 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode* Chipset: 1 x PCIe 4.0 x16 Slot (PCIE2), supports x4 mode* 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module 15μ Gold Contact in VGA PCIe Slot (PCIE1) * PCIE1 will run at Gen5x16 with 9000 and 7000 series processors, Gen4x8 with 8000 (Phoenix 1) series processors and Gen4x4 with 8000 (Phoenix 2) series processors. If M2_3 is occupied, PCIE2 will be disabled. Supports NVMe SSD as boot disks
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: 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2230/2242/2260/2280 PCIe Gen4x4 (64 Gb/s) mode* 1 x Ultra M.2 Socket (M2_4, Key M), supports type 2280 PCIe Gen3x4 (32 Gb/s) mode* 2 x SATA3 6.0 Gb/s Connectors ASMedia ASM1061: 2 x SATA3 6.0 Gb/s Connectors * Supports NVMe SSD as boot disks. M2_1 is the first priority for M.2 installation. M2_1 will run at Gen5x4 with 9000 and 7000 series processors and Gen4x4 with 8000 (Phoenix 1 and Phoenix 2) series processors. M2_2 will run at Gen4x4 with 9000 and 7000 series processors, Gen4x4 with 8000 (Phoenix 1) series processors and Gen4x2 with 8000 (Phoenix 2) series processors. If M2_3 is occupied, PCIE2 will be disabled. If SATA3_1 or SATA3_2 is occupied, M2_4 will downgrade to Gen3x2 mode.
RAID	Supports RAID 0 and RAID 1 for SATA storage devices Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices
USB	CPU: 1 x USB 3.2 Gen2 Type-C (Rear) 1 x USB 3.2 Gen1 Type-C (Rear) 2 x USB 3.2 Gen1 Type-A (Rear (USB32_1 and USB32_2)) Chipset: 1 x USB 3.2 Gen2x2 Type-C (Front) 4 x USB 3.2 Gen1 Type-A (2 Rear (USB32_3 and USB32_4), 2 Front) 9 x USB 2.0 (6 Rear, 3 Front) * All USB ports support ESD Protection
Connector	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) (Smart Fan Speed Control)* 4 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)* 1 x AIO Pump Fan Connector (4-pin) (Smart Fan Speed Control)* 1 x 24 pin ATX Power Connector 2 x 8 pin 12V Power Connectors (Hi-Density Power Connector) 1 x Front Panel Audio Connector 2 x USB 2.0 Headers (Support 3 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 Gen2x2 Header (20 Gb/s) * Supports in total up to 12V/3A, 36W LED Strip Support in total up to 5V/3A, 15W LED Strip * CPU_FAN1 supports the fan power up to 1A (12W). CPU_FAN2, CHA_FAN1~4 and AIO_PUMP support the fan power up to 3A (36W). CPU_FAN2, CHA_FAN1~4 and AIO_PUMP can auto detect if 3-pin or 4-pin fan is in use.
Rear Panel I/O	2 x Antenna Ports 1 x HDMI Port 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) 1 x USB 3.2 Gen1 Type-C Port (DP-alt mode supports DP1.4a) 4 x USB 3.2 Gen1 Type-A Ports 6 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 and UEFI	Software ASRock Motherboard Utility (A-Tuning) ASRock Dragon 2.5G LAN Software ASRock Polychrome SYNC* UEFI ASRock EZ Mode ASRock Full HD UEFI ASRock Auto Driver Installer ASRock Instant Flash *These utilities can be downloaded from ASRock Live Update & APP Shop.
Accessories	1 x I/O Shield 2 x SATA Data Cables 2 x ASRock WiFi 2.4/5/6 GHz Antennas
Form Factor	ATX Form Factor 8 Layer PCB
OS	Microsoft Windows 10 64-bit / 11 64-bit
Certifications	FCC, CE ErP/EuP ready (ErP/EuP ready power supply is required)

About the Brand

ASRock is a globally recognized brand specializing in high-performance motherboards, industrial PCs, and mini PCs, with a strong focus on innovation and durability. Since its founding in 2002, ASRock has carved a reputation for delivering feature-rich platforms that cater to gamers, professionals, and system builders alike.

Known for pushing boundaries with advanced BIOS control, premium materials, and striking designs, ASRock motherboards are a favorite among enthusiasts seeking reliability and performance. The brand also offers compact and energy-efficient solutions ideal for modern minimalist builds.