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ASRock AMD B850M Pro A WiFi 6E Socket AM5 Ryzen 9000/8000/7000 Series DDR5 8000+ (OC) MHz 256GB Micro ATX Motherboard M.2 SATA3 6.0 Gb/s PCIe 5.0 BIOS Flashback 2.5G LAN
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AI Verdict
This Micro-ATX AM5 board with a B850 chipset offers PCIe 5.0 for graphics and one M.2 slot, plus DDR5 8000+ (OC) support, making it a solid foundation for a compact Ryzen 7000/8000/9000 build.
This ASRock B850M Pro A WiFi 6E motherboard is a strong contender for compact builds, offering PCIe 5.0 for both graphics and a primary M.2 drive, plus DDR5 8000+ (OC) support. Its Micro-ATX form factor and integrated WiFi 6E make it suitable for space-constrained setups that still demand modern performance. However, the shared PCIe and M.2 lanes mean you need to be mindful of your component choices.
If you need more simultaneous PCIe expansion or don't want to deal with lane sharing, look for a full-sized ATX motherboard with a B850 or X870 chipset.
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Pros
- Supports AMD Ryzen 9000, 8000, and 7000 Series Processors on the AM5 socket, ensuring compatibility with current and future CPUs.
- Features one PCIe 5.0 x16 slot for the latest graphics cards and one Blazing M.2 (PCIe Gen5x4) slot for high-speed storage.
- Includes 4 DDR5 DIMM slots supporting dual-channel memory configurations and overclocked speeds up to 8000+ (OC) MHz.
- Equipped with Realtek 2.5G LAN and 802.11axe WiFi 6E + Bluetooth for fast wired and wireless connectivity.
- The 8+2+1 phase power design with Dr.MOS for VCore, SOC, and MISC provides stable power delivery.
- BIOS Flashback functionality allows for BIOS updates without a CPU, RAM, or GPU installed.
Cons
- The Realtek ALC897 audio codec is considered a budget option, which might not satisfy audiophiles.
- Using the third M.2 slot (M2_3) disables the second PCIe slot (PCIE2), limiting expansion options.
- The board's 256Mb AMI UEFI BIOS, while functional, might feel less feature-rich compared to higher-end offerings.
- The Micro-ATX form factor, while compact, inherently offers fewer expansion slots than full-sized ATX boards.
Dimension Scores
The 8+2+1 phase power design with Dr.MOS for VCore, SOC, and MISC is robust for a B850 board, providing stable performance for compatible Ryzen CPUs.
It includes PCIe 5.0 for graphics and one M.2, DDR5 8000+ (OC) support, 2.5G LAN, and WiFi 6E, which are strong features for its chipset class.
While offering one PCIe 5.0 x16 and three M.2 slots, the disabling of the second PCIe slot when M2_3 is occupied is a significant limitation.
The 256Mb AMI UEFI BIOS with GUI support and BIOS Flashback feature are functional, though the ALC897 audio codec is a budget choice.
Best For
- Compact gaming PCs needing PCIe 5.0 graphics and storage.
- Budget-conscious builders targeting current-gen Ryzen CPUs.
- Systems requiring integrated WiFi 6E and 2.5G Ethernet.
- Users who prioritize a smaller footprint with Micro-ATX cases.
Not Recommended For
- Enthusiasts needing extensive PCIe lane allocation for multiple expansion cards.
- Users demanding premium integrated audio solutions.
- Builds where all M.2 slots and the second PCIe slot must be simultaneously active at full speed.
Watch Out For
- If you populate the M2_3 slot, the PCIE2 slot becomes unusable, so plan your expansion cards carefully.
- The board might ship with an older BIOS version, requiring a BIOS Flashback update to support newer Ryzen CPUs, which can be a hassle if you don't have an older compatible CPU on hand.
- The M2_1 slot prioritizes installation, and the M2_3 slot's speed can vary (Gen4x4 or Gen4x2) depending on the specific 8000 series CPU used.
Full Specifications
| ASIN | B0DS6KDMF5 |
| Brand | ASRock |
| Platform | Windows 11 |
| Batteries | 1 CR2032 batteries required. |
| CPU Model | Ryzen 9 |
| CPU Socket | Socket AM5 |
| Model Name | B850M PRO-A WIFI |
| Item Weight | 2.2 pounds |
| Chipset Type | AMD B850 |
| Manufacturer | ASRock |
| Item model number | B850M PRO-A WIFI |
| Compatible Devices | Desktop |
| Memory Clock Speed | 8000 MHz |
| Product Dimensions | 11.81 x 9.45 x 1.97 inches |
| Compatible Processors | AMD Ryzen 9000/8000/7000 Series |
| RAM Memory Technology | DDR5 |
What Buyers Say
The ASRock B850M Pro A WiFi 6E is a Micro-ATX motherboard that packs modern features like PCIe 5.0 and WiFi 6E into a compact form factor. Users building with newer Ryzen CPUs should be prepared to use the BIOS Flashback feature, as the board might ship with an older BIOS version. The lane sharing between the second PCIe slot and the third M.2 slot is a common point of consideration, requiring careful planning for component installation. The integrated audio, while present, uses a budget codec.
“Man, this board has all the new stuff like PCIe 5.0 and WiFi 6E, but seriously, check the BIOS version before you even think about putting your new Ryzen 9000 in there, almost bricked my CPU trying to boot with an old BIOS! And that M.2 slot sharing with the other PCIe slot is kinda annoying.”
Common Praise
- Supports the latest Ryzen 7000, 8000, and 9000 series processors.
- Includes PCIe 5.0 for graphics and a primary M.2 slot, future-proofing for high-speed components.
- Integrated WiFi 6E and 2.5G LAN provide fast and reliable networking.
- BIOS Flashback makes updating the BIOS straightforward, even without a CPU.
- The Micro-ATX form factor is suitable for smaller PC builds.
Common Complaints
- The Realtek ALC897 audio codec is a budget solution, not ideal for high-fidelity audio.
- Populating the third M.2 slot disables the second PCIe slot, limiting simultaneous expansion.
- Potential need for a BIOS update out of the box for newer CPUs, which can be an extra step for builders.
Ownership Tips
- Testing outside the case before full assembly is a smart move, especially for initial boot-up and BIOS updates.
- The included WiFi 6E antennas are functional but might not be the most aesthetically pleasing.
- Managing cable routing in a Micro-ATX case with this board requires some planning due to its compact size.
Frequently Asked Questions
Does this motherboard support AMD Ryzen 9000 series processors out of the box?
Yes, it supports AMD Ryzen 9000, 8000, and 7000 Series Processors. However, depending on the BIOS version it ships with, you might need to perform a BIOS Flashback update for the newest CPUs.
What is the maximum RAM speed and capacity this motherboard supports?
It supports up to 256GB of DDR5 RAM across four DIMM slots, with overclocked speeds reaching 8000+ (OC) MHz in dual-channel configurations.
Can I use two graphics cards with this motherboard?
The board has one PCIe 5.0 x16 slot and one PCIe 4.0 x4 slot. However, if you use the third M.2 slot (M2_3), the PCIe 4.0 x4 slot (PCIE2) will be disabled, limiting you to one active PCIe x16 slot.
Does this motherboard have integrated Wi-Fi and Bluetooth?
Yes, it comes with integrated 802.11axe WiFi 6E and Bluetooth, providing modern wireless connectivity options.
How many M.2 SSDs can I install on this board?
You can install up to three M.2 SSDs: one Blazing M.2 (PCIe Gen5x4) and two Hyper M.2 (PCIe Gen4x4) slots.
Is the audio quality good for gaming?
It uses the Realtek ALC897 7.1 CH HD Audio Codec. While functional, a reviewer noted it's a budget codec, so serious audiophiles might consider a dedicated sound card.
Buying Guide
When picking a motherboard, you're essentially choosing the foundation for your PC. It dictates what CPU, RAM, and storage you can use, and how fast they'll communicate. For an AM5 board like this, you're getting access to AMD's latest Ryzen processors and DDR5 memory. Pay close attention to the PCIe generation for your graphics card and M.2 SSDs, as this impacts performance. Also, consider the form factor to ensure it fits your case.
Socket AM5
This is the CPU socket type, specifically for AMD's Ryzen 7000, 8000, and 9000 series processors. If your CPU isn't AM5, it won't fit this board, like trying to put a square peg in a round hole.
PCIe 5.0 x16
This is the slot for your graphics card. PCIe 5.0 is the newest and fastest standard, meaning your high-end GPU can communicate with the CPU at maximum speed, preventing bottlenecks, similar to a super-wide highway for your car.
DDR5 8000+ (OC) MHz
This refers to the type and speed of RAM the board supports. DDR5 is the latest generation, offering faster speeds than DDR4. The '8000+ (OC)' means it can handle very fast, overclocked memory, which can boost overall system responsiveness, like having a faster short-term memory for your computer.
Alternatives
If you need more PCIe lanes or don't want to manage lane sharing, look for an ATX form factor motherboard. If you require a more budget-friendly option and don't need PCIe 5.0, consider a B650 chipset board.



