






Motherboard Asrock B850M PRO-A WIFI
- CPU socket
- AM5
- Chipset (MB)
- AMD B850 MB
- Form factor
- Micro ATX
- Supported memory
- DDR5
- Number of memory slots
- 4
Description
Asrock B850M PRO-A WIFI is a Micro ATX motherboard for AM5, aimed at a stable mid-range build with the option for serious upgrades in the future. The combination of AMD B850 chipset, DDR5 support, and PCIe 5.0 x16 slot makes it a good foundation for a modern system with a next-generation Ryzen processor. You have WiFi 6E, 2.5G LAN, and plenty of USB ports for peripherals and fast external devices. The Micro ATX form factor gives you a balance between compactness and expandability.
What you get
The AM5 socket and support for Ryzen 9000, 8000, and 7000 Series means you can start with a more affordable CPU and later upgrade to a more powerful model without changing the motherboard. The four DIMM slots with DDR5 support up to 256 GB and frequencies up to 8000 MHz (O.C.) provide serious potential for high-refresh gaming and heavy applications, as long as you choose the right RAM. The three M.2 slots – including one Blazing M.2 PCIe Gen5x4 – allow you to combine an ultra-fast system SSD with additional Gen4 drives for gaming and work. The built-in WiFi 6E and Bluetooth 5.2, plus 2.5G LAN, cover all scenarios – from a stable wired connection for competitive gaming to flexible wireless use.
- The AM5 socket with support for Ryzen 9000, 8000, and 7000 Series provides you with a long platform life and easy CPU upgrades.
- Four slots for DDR5 memory with a capacity of up to 256 GB and frequencies up to 8000 MHz (O.C.) are an excellent base for gaming and productivity with dual-channel mode.
- Three M.2 slots, including 1 x Blazing M.2 PCIe Gen5x4 and 2 x Hyper M.2 PCIe Gen4x4, allow a mix of super-fast system disk and large storage for games and projects.
- Four SATA3 6.0 Gb/s ports with RAID 0, 1, 10 give you options for mass storage, backup, or a combination of speed and reliability.
- The built-in 2.5 Gigabit LAN (Dragon RTL8125BG) with Smart Auto Adjust Bandwidth Control and profiles for game/browser/streaming helps you keep network traffic under control.
- WiFi 6E (802.11ax) and Bluetooth 5.2 provide modern wireless connectivity for fast internet and easy pairing of headphones, gamepads, and other devices.
- Built-in audio Realtek ALC897, 7.1-Channel HD, sufficient for normal gaming and multimedia without a separate sound card.
- Rich I/O: USB 3.2 Gen2 Type-C and Type-A at the back, plus USB 3.2 Gen1 and USB 2.0 for front and back panel, allowing you to connect multiple peripherals and external drives simultaneously.
- The main PCIe 5.0 x16 slot with 15μ gold plating is optimized for modern GPUs and ensures good connectivity and durability of the connector.
Who it is suitable for
This motherboard is suitable for gaming and all-round builds with Ryzen AM5 – from 1080p to more serious configurations if you combine it with a powerful GPU. It is also a good choice for a compact yet serious work computer with plenty of RAM and fast NVMe drives. If you are looking for an E-ATX monster with tons of PCIe slots for expansion cards, the Micro ATX form factor may seem limited to you.
The combination of AM5, DDR5, PCIe 5.0 x16, Gen5 M.2, and built-in WiFi 6E/2.5G LAN makes Asrock B850M PRO-A WIFI a very sensible foundation for a modern, balanced build that you can easily develop over the next few generations of Ryzen.
Full specifications
- Manufacturer
-
Asrock
- CPU socket
-
AM5
- Chipset (MB)
- AMD B850
- Form factor
- Micro ATX
- Supported processors
-
Supports AMD Socket AM5 Ryzen™ 9000, 8000 and 7000 Series Processors
- Supported memory
-
DDR5
- Number of memory slots
- 4
- Maximum RAM capacity
- 256 GB
- Memory frequency (MHz)
-
up to 8000MHz (O.C.)
- Support for dual-channel memory
- Yes
- Built-in audio
-
Realtek ALC897 Codec7.1-Channel High Definition Audio
- Built-in Wi-Fi
-
WiFi 6E (802.11ax)
- Bluetooth version
- Bluetooth V5.2
- Built-in LAN
-
2.5 Gigabit LAN 10/100/1000/2500 Mb/sDragon RTL8125BGSupports Dragon 2.5G LAN SoftwareSmart Auto Adjust Bandwidth ControlVisual User Friendly UIVisual Network Usage StatisticsOptimized Default Setting for Game, Browser, and Streaming ModesUser Customized Priority Control
- SATA interface
- 4 x SATA3 6.0 Gb/s
- RAID support
- 0,1,10
- Expansion slots
-
CPU:- 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode*- 1 x PCIe 4.0 x4 Slot (PCIE2), supports x4 mode*Chipset:- 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module- 15μ Gold Contact in VGA PCIe Slot (PCIE1)
- Power connector
-
1 x 24-pin1 x 8-pin1 x 4-pin
- 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 DisplayPort 1.4 with DSC (compressed), supports HDCP 2.3 and max. resolution up to 4K 120Hz
- BIOS
- 256Mb AMI UEFI Legal BIOS with GUI support
- Processor generation
-
7th generation8th generation9th generation
- Warranty
- 36 months
- OS
-
Windows 11 64-bit
- M2 slot
-
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_3, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode*Chipset:- 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode*
- USB ports
-
CPU:- 1 x USB 3.2 Gen2 Type-C (Rear)- 1 x USB 3.2 Gen2 Type-A (Rear)Chipset:- 1 x USB 3.2 Gen1 Type-C (Front)- 6 x USB 3.2 Gen1 Type-A (2 Rear, 4 Front)- 8 x USB 2.0 (4 Rear, 4 Front)
- Rear I/O panel
-
2 x Antenna Ports1 x HDMI Port1 x DisplayPort 1.41 x USB 3.2 Gen2 Type-A Port (10 Gb/s)1 x USB 3.2 Gen2 Type-C Port2 x USB 3.2 Gen1 Ports4 x USB 2.0 Ports1 x RJ-45 LAN Port1 x BIOS Flashback ButtonHD Audio Jacks: Line in / Front Speaker / Microphone
- Connectors
-
1 x SPI TPM Header1 x Power LED and Speaker Header1 x RGB LED Header3 x Addressable LED Headers2 x CPU Fan Connectors (4-pin) (Smart Fan Speed Control)3 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)1 x 24 pin ATX Power Connector1 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 Connector2 x USB 2.0 Headers (Support 4 USB 2.0 ports)2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports)1 x Front Panel Type C USB 3.2 Gen1 Header
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