ASUS
ASUS ROG Maximus Z890 Hero
LGA1851 · Z890 · ATX
8.7
$450Nov 93 videos
ASUS ROG Strix B850-I Gaming WiFi
Mini-ITX B850 board with two Gen5 M.2 slots, Wi-Fi 7 and a 20Gbps rear USB-C port.
- AM5
- B850
- Mini-ITX
- DDR5
- 2
PCPR score
7.2
Good
Best price we’ve seen
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R1
The short version
The ROG Strix B850-I Gaming WiFi is a 17 x 17 cm Mini-ITX board for AM5. Both M.2 slots run PCIe 5.0 with Ryzen 9000, and it adds Wi-Fi 7, Intel 2.5Gb Ethernet and eight rear USB ports including a 20Gbps Type-C. Limits are two DIMM slots, two SATA ports and 2.5Gb LAN, so it suits compact gaming builds rather than storage-heavy ones.
Pros
- Both M.2 slots support PCIe 5.0 x4
- Wi-Fi 7 and Bluetooth 5.4
- 20Gbps rear USB-C
- Mini-ITX size
Cons
- Only two DIMM slots
- Two SATA ports
- 2.5Gb Ethernet only
Best for
- Compact Ryzen 9000 gaming builds
J3
Full specifications
Core
- Socket
- AM5
- Chipset
- B850
- Form factor
- Mini-ITX
Memory
- Memory type
- DDR5
- Memory slots type
- DIMM
- Memory slots
- 2
- Max memory
- 128 GB
- Max memory speed (OC)
- 8,200 MT/s
Expansion
- M.2 slots
- 2
- M.2 PCIe 5.0 slots
- 2
- M.2 PCIe 4.0 slots
- 0
- M.2 PCIe 3.0 slots
- 0
- Supports M.2 22110
- No
- SATA ports
- 2
- PCIe x16 slots
- 1
- Primary PCIe slot version
- 5.0
- PCIe x4 slots
- 0
- PCIe x1 slots
- 0
Connectivity
- Wi-Fi
- Wi-Fi 7
- Bluetooth
- 5.4
- Ethernet speed
- 2.5 GbE
- Ethernet ports
- 1
Ports & I/O
- USB4 / Thunderbolt ports
- 0
- Rear USB-C ports
- 2
- Rear USB-A ports
- 6
- Front USB-C header
- Yes
- USB 3 headers
- 1
- USB 2 headers
- 1
Fit
- Back-connect (BTF / Project Zero)
- No
Compatibility notes
- Maximum 128 GB of memory across two DIMM slots.
- Both M.2 slots take 2242/2260/2280 drives, not 22110.
P1
Where to buy
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AV1
Video reviews
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AV2
What reviewers and owners say
r/sffpc · u/Ok-Butterfly1370
CriticalAn owner who RMA'd the board reports EXPO causing BSODs and GPU driver crashes, visible warping of the M.2 SSD under the stock heatsink, and a failed Dolby Atmos license activation.
2026-07-22
Read the sourcer/sffpc · u/clayt__
CriticalAn owner says the Aura lighting option appears in Armoury Crate but no RGB ever lights up on the motherboard regardless of the setting chosen.
2026-08-01
Read the source
Summaries are written in our words. Follow the links for each source’s own review.
R9
Common questions
Are both M.2 slots PCIe 5.0?
With Ryzen 9000 and 7000 CPUs both M.2 slots run PCIe 5.0 x4; with Ryzen 8000 they run at PCIe 4.0 x4.
What is the board size?
It is Mini-ITX at 6.7 x 6.7 inches (17 x 17 cm).
J9Alternatives
