
ASUS ROG Strix X870-I Gaming WiFi
- Socket:
- AM5
- Chipset:
- X870
- Form Factor:
- Mini-ITX
- Memory:
- 2x DDR5, up to 128GB
- M.2 Slots:
- 2 (1x PCIe 5.0)
- Network:
- Wi-Fi 7 + 2.5GbE, dual USB4
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Manufacturer: ASUS Last updated: September 11, 2026
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ASUS ROG Strix X870-I Gaming WiFi Review
The ROG Strix X870-I Gaming WiFi packs X870-tier features into a Mini-ITX footprint, targeting small-form-factor builders who still want PCIe 5.0 storage, dual USB4 ports, and Wi-Fi 7 without stepping up to a full ATX board. It's built for Ryzen 9000/8000/7000 processors in SFF cases where every millimeter of board space is contested.
The board uses a 10+2+1 power stage design; ASUS does not publish an exact per-stage amperage figure for this SKU, but the layout is sized for Ryzen 9000 non-X3D chips at stock-to-moderate overclocks in a thermally constrained ITX case rather than sustained all-core extreme overclocking. Two DDR5 DIMM slots support up to 128GB total capacity, with AMD EXPO enabling speeds of 8600+ MT/s depending on CPU generation and DIMM population, though ITX boards typically see tighter memory OC headroom than ATX siblings due to shorter trace lengths and single-sided cooling. A single PCIe 5.0 x16 slot handles the GPU, while two M.2 slots cover storage: one PCIe 5.0 x4 and one PCIe 4.0 x4, both underneath dedicated heatsinks to manage thermals in the tight ITX chassis. Dual USB4 ports (40Gbps) are a standout feature at this size, alongside 2.5GbE wired networking, Wi-Fi 7 (802.11be), and Bluetooth 5.4. Audio runs through an ESS SABRE9260Q DAC, and the board supports an optional ROG Strix Hive II external I/O hub for builders who need more rear ports. Against the ASUS Prime X870-P WiFi already in this catalog, the Strix X870-I trades ATX expansion room for a Mini-ITX footprint while keeping the same X870 chipset feature set, making it the pick for SFF builds rather than full-tower rigs.
Power Delivery and VRM Design
The board uses a 10+2+1 power stage design; ASUS does not publish an exact per-stage amperage figure for this SKU, but the layout is sized for Ryzen 9000 non-X3D chips at stock-to-moderate overclocks in a thermally constrained ITX case rather than sustained all-core extreme overclocking.
Memory Support
Two DDR5 DIMM slots support up to 128GB total capacity, with AMD EXPO enabling speeds of 8600+ MT/s depending on CPU generation and DIMM population, though ITX boards typically see tighter memory OC headroom than ATX siblings due to shorter trace lengths and single-sided cooling.
Expansion and Storage
A single PCIe 5.0 x16 slot handles the GPU, while two M.2 slots cover storage: one PCIe 5.0 x4 and one PCIe 4.0 x4, both underneath dedicated heatsinks to manage thermals in the tight ITX chassis.
Connectivity
Dual USB4 ports (40Gbps) are a standout feature at this size, alongside 2.5GbE wired networking, Wi-Fi 7 (802.11be), and Bluetooth 5.4. Audio runs through an ESS SABRE9260Q DAC, and the board supports an optional ROG Strix Hive II external I/O hub for builders who need more rear ports.
Comparison to Alternatives
Against the ASUS Prime X870-P WiFi already in this catalog, the Strix X870-I trades ATX expansion room for a Mini-ITX footprint while keeping the same X870 chipset feature set, making it the pick for SFF builds rather than full-tower rigs.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- SFF builders who want dual USB4 and Wi-Fi 7 in a Mini-ITX X870 board
- Ryzen 9000 builds in compact cases where PCIe 5.0 M.2 storage matters
Not for
- Anyone planning sustained extreme all-core overclocking, where ATX VRM headroom helps more
- Builders needing more than one PCIe slot or more than two M.2 sockets
Specifications
What these specs meanIdentity
| Model Number | ROG Strix X870-I Gaming WiFi |
|---|---|
| Form Factor | Mini-ITX |
Platform and CPU compatibility
| Platform | AMD |
|---|---|
| Socket | AM5 |
| Chipset | X870 |
| Newest CPU Family Supported | Ryzen 9000 |
| Oldest CPU Family Supported | Ryzen 7000 |
| CPU Overclocking Supported | Yes |
Memory
| Memory Type | DDR5 |
|---|---|
| Memory Slots | 2 |
| Max Memory | 128 GB |
| Max Rated Memory Speed | 8600 MT/s |
| ECC Memory Support | Unbuffered ECC |
Expansion & Connectivity
| M.2 Slots | 2 |
|---|---|
| PCIe 5.0 Support | Yes |
| Wi-Fi Onboard | Yes |
M.2 storage
| M.2 PCIe 5.0 Slots | 1 |
|---|---|
| M.2 PCIe 4.0 Slots | 1 |
| M.2 CPU Attached Slots | 1 |
Other storage
| SATA Ports | 2 |
|---|
PCIe expansion
| PCIe x16 Slots | 1 |
|---|---|
| Primary Graphics Slot Gen | PCIe 5.0 |
Rear USB
| Rear USB4 or TB Ports | 2 |
|---|---|
| Rear USB 10Gbps Ports | 5 |
| Rear USB 2.0 Ports | 3 |
Internal headers
| Front USB-C Header Speed | 10Gbps |
|---|---|
| Front USB-C Power Delivery | 15 W |
| Fan and Pump Headers | 3 |
| ARGB Headers | 2 |
Power delivery
| Vcore Power Stages | 10 |
|---|---|
| EPS 12V Configuration | One 8-pin |
Builder features
| BIOS Flashback | Yes |
|---|---|
| Tool Free M.2 Retention | Yes |
Network and audio
| Max Ethernet Speed | 2.5 Gbps |
|---|---|
| Ethernet Port Count | 1 |
| Wi-Fi Standard | Wi-Fi 7 |
| Bluetooth Version | 5.4 |
| Audio Codec | ESS SABRE9260Q DAC |
FAQs
What are the key specifications of the ASUS ROG Strix X870-I Gaming WiFi (AM5/AMD X870/Mini-ITX/10+2+1 Power Stages/Dual USB4)?
Key specs for the ASUS ROG Strix X870-I Gaming WiFi: Chipset X870, Socket AM5, Socket Type AM5, Max Memory 128 GB, Form Factor Mini-ITX, VRM 10+2+1 phase (amperage not officially disclosed by ASUS).
Will the ASUS ROG Strix X870-I Gaming WiFi (AM5/AMD X870/Mini-ITX/10+2+1 Power Stages/Dual USB4) work with my current setup?
The ASUS ROG Strix X870-I Gaming WiFi (AM5/AMD X870/Mini-ITX/10+2+1 Power Stages/Dual USB4) lists Socket is AM5. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the ASUS ROG Strix X870-I Gaming WiFi (AM5/AMD X870/Mini-ITX/10+2+1 Power Stages/Dual USB4) best suited to?
Best suited to: SFF builders who want dual USB4 and Wi-Fi 7 in a Mini-ITX X870 board; Ryzen 9000 builds in compact cases where PCIe 5.0 M.2 storage matters.
What are the drawbacks of the ASUS ROG Strix X870-I Gaming WiFi (AM5/AMD X870/Mini-ITX/10+2+1 Power Stages/Dual USB4)?
Not the best fit for: Anyone planning sustained extreme all-core overclocking, where ATX VRM headroom helps more; Builders needing more than one PCIe slot or more than two M.2 sockets.
Compare and read more
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