I didn't understand some features until I went to ASUS' site and looked at every feature and its description there. Explanations aren't in the manual for how the hardware works. For example: the EF Fan header is not Exhaust Fan Fan like I thought, it is Extra Flow Fan. Just an extra chassis fan header, I guess. I did have to replace the thermal pads on the M.2 slot, they were too thin and too slim (narrow). 1mm pads worked fine for my 4Tb Crucial T500 drive I put there. I wish the second M.2 slot were mounted on a 1/4" standoff from the back of the board, my temps are 58 for the 4Tb WD SN850X
8.6Our score 4 photosASUS ROG Strix B850-I Gaming WiFi AMD AM5 B850 Mini-ITX mITX Motherboard 10+2+1 Stages, DDR5, 2.5G LAN, WiFi 7, 2X M.2, PCIe® 5.0 x16, USB 20Gbps Type-C®, AI Overclocking, AI Networking II, Aura Sync
AMD AM5 Socket: Ready for AMD Ryzen 9000, 8000 and 7000 series desktop processors
About this item
- AMD AM5 Socket: Ready for AMD Ryzen 9000, 8000 and 7000 series desktop processors
- Intelligent Control: ASUS AI Advisor, AI Overclocking, AI Networking II and AEMP to simplify setup and improve performance
- Robust Power Solution: 10+2+1 power solution rated for up to 70A per stage with ProCool power connectors
- Optimized Thermal Design: Massive heatsinks with integrated I/O cover and high-conductivity thermal pads
- Latest M.2 Support: Two onboard PCIe 5.0 M.2 slots, one cooled by a large heatsink to maximize performance, and the other for additional storage
AMD AM5 Socket: Ready for AMD Ryzen 9000, 8000 and 7000 series desktop processors
Ranked #99 in PC Parts · 4 things we like
Quick answer The ASUS ROG Strix B850-I Gaming WiFi AMD AM5 B850 scores 8.6/10 with us. Amazon owners rate it 4.3 out of 5 across 197 reviews, in line with the 4.3 average of the 147 motherboards we track. It was listed at $328.99 on Amazon when we last checked in September 2026. Key facts: processor socket Socket AM5, memory clock speed 3200 MHz, memory storage capacity 96 GB.
Don’t underestimate its compact size—the ASUS ROG STRIX B850-I GAMING WIFI delivers powerhouse performance! Featuring 10+2+1 power stages, DDR5 with AEMP, PCIe 5.0 x16 SafeSlots, WiFi 7 with Q-Antenna, two M.2 slots, USB 20Gbps Type-C, AI Overclocking, and Aura Sync RGB, it’s perfect for Ryzen™ 9000 SFF builds.
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Product information
24 specifications| Processor Socket | Socket AM5 |
|---|---|
| Compatible Devices | Personal Computer |
| RAM Memory Technology | DDR5 |
| Compatible Processors | AM5 |
| Chipset Type | AMD B850 |
| Memory Clock Speed | 3200 MHz |
| Platform | Windows |
| CPU Model | Core i3 Family |
| Memory Storage Capacity | 96 GB |
| Ram Memory Maximum Size | 96 GB |
| Main Power Connector Type | 24-Pin |
| Graphics Card Interface | PCI Express 4.0 |
| Memory Slots Available | 1 |
|---|---|
| Number of Ports | 19 |
| Total SATA Ports | 2 |
| USB 2.0 | 1 |
| Total Usb Ports | 13 |
| Number of Ethernet Ports | 1 |
| Total Number of HDMI Ports | 1 |
| Total PCIe Ports | 2 |
| Chipset Family | AMD |
| Brand | ASUS |
| Model Name | 5Z8N |
| Model Number | 5Z8N |
Pros & cons
- AMD AM5 Socket: Ready for AMD Ryzen 9000, 8000 and 7000 series desktop processors
- Intelligent Control: ASUS AI Advisor, AI Overclocking, AI Networking II and AEMP to simplify setup and improve performance
- Robust Power Solution: 10+2+1 power solution rated for up to 70A per stage with ProCool power connectors
- Optimized Thermal Design: Massive heatsinks with integrated I/O cover and high-conductivity thermal pads
ASUS ROG Strix B850-I Gaming WiFi AMD AM5 B850: questions & answers
Is the ASUS ROG Strix B850-I Gaming WiFi AMD AM5 B850 worth buying?
Yes, it is one of the stronger picks in its group. We score the ASUS ROG Strix B850-I Gaming WiFi AMD AM5 B850 8.6 out of 10. Amazon owners rate it 4.3 out of 5 across 197 reviews, in line with the 4.3 average of the 147 motherboards we track.
How much does the ASUS ROG Strix B850-I Gaming WiFi AMD AM5 B850 cost?
It was listed at $328.99 on Amazon when we last checked in September 2026. That is more than the $183.99 median for motherboards in our catalog. Amazon prices change daily, so use the price button on this page to see the current figure.
What options does the ASUS ROG Strix B850-I Gaming WiFi AMD AM5 B850 come in?
Amazon lists 9 options. Style: ROG Strix|Black, TUF Gaming|Black, ROG Strix|White, Pro|Black, MAX Gaming|Black, PRIME|Black. Size: Mini-iTX|WiFi7, M.2x3|WiFi7, M.2x3|WiFi6|DPx2 HDMI, M.2x4|WiFi7|DP HDMI, M.2x2|DPx2 HDMI, M.2x3|WiFi6|DP HDMI, M.2x2|WiFi6|DP HDMI VGA, Mini-iTX|64MB BIOS|WiFi7 and 1 more. Pick an option on this page and the button opens exactly that model.
What are the key specs of the ASUS ROG Strix B850-I Gaming WiFi AMD AM5 B850?
Processor Socket: Socket AM5; Memory Clock Speed: 3200 MHz; Memory Storage Capacity: 96 GB; Graphics Card Interface: PCI Express 4.0; Memory Slots Available: 1; Total SATA Ports: 2. All 24 specifications are in the product information table on this page.
What are good alternatives to the ASUS ROG Strix B850-I Gaming WiFi AMD AM5 B850?
Similar, well-rated motherboards in our catalog: ASUS ROG Strix B850-A Gaming WiFi R2 AMD AM5 (8.2/10, 4.5 stars from 440 owners); ASUS X870 AYW Gaming WiFi W AMD X870 AM5 ATX (9.8/10, 4.4 stars from 144 owners); ASUS ROG Strix B650-A Gaming WiFi AMD B650 AM5 (9.0/10, 4.5 stars from 1,240 owners).
ASUS ROG Strix B850-A Gaming WiFi R2 AMD AM5ASUS X870 AYW Gaming WiFi W AMD X870 AM5 ATXASUS ROG Strix B650-A Gaming WiFi AMD B650 AM5
Customer reviews
All reviews on AmazonBreakdown from the 10 most helpful reviews we imported.
Motherboard is great so far has all the features that you would need for a modern motherboard in 2026 only downside is it holds two stick of ram but my PC build is strictly for gaming. You can get two 128 gb DDR5 if you really need it lol
Took a little fanagling but it eventually worked out.Great bit of hardware for your Mini-ITX build. Fit this into the KKSB K1 case from Kickstarter Years ago. It's like 7L of room.Very compact, and this motherboard had all the bells and whistles I wanted for the full PCIe 5 Go around. PCIe Riser Cable is even 5.This Motherboard is smooth, and thee ASUS BIOS has always been user-friendly in my mind compared to some others I've used in the past.Grab one now!
Llego en el tiempo estipulado y en excelente estado.
Poor stability. PC takes 1-3 minutes to turn on and sometimes not at all. Everytime I turn it on windows says "something happened, reset your pin". I have done extensive troubleshooting and nothing fixed it. The drivers dont have gui/window when you double click to install, I have no way of knowing when it's done or not. New MSI motherboard fixed the problem completely, instant boots and no issues. Also when I stalled the drivers a GUI appeared like its supposed to.
There are at least two other ITX B850-sized boards; in my case, I am not able to detail full ITX usage, as I bought this board for a combination of stability and RAM overclocking.First and foremost, this motherboard does not support an Arctic Liquid Freezer III; the tubes will be hitting the NVMe heatsink block, as well as even the NVMe when the block is off. You may be able to install the pump NORTH; however, you may cause your cooler to develop bubbles or deteriorate.When it comes to overclocking RAM, this was on beta BIOS 1001 and 1002; it is able to go to its supported rate; however, it se
The ROG Strix B850-I is a powerhouse in a compact form. Despite its mini-ITX size, it delivers excellent performance, strong VRMs for stable overclocking, and plenty of features packed into a small board. Wi-Fi 7, PCIe 5.0 support, and solid cooling solutions make it future-proof, while the sleek ROG design keeps it looking premium. Ideal for small-form-factor builds that don’t want to compromise on power.
I want to really like this system, but some of their choices just make no sense and cause issues. Performance wise it does well and is what you expect for a B850 chipset.Where this design fails is when it comes to the little things that become a big problem. The "on board" audio is just a USB audio, and it is just really not good. I use an external DAC and even with that, it is just bad. So bad, I actually plugged in a USB SPDIF, and it worked better. The WIFI is horrible, as is the BT. Luckily I have LAN as it was bad. Again, even plugging in a cheap USB wifi was better. Then you have the des
Customer reviews are shown as published on Amazon and are not written by Do Best Deal.




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