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ASUS · AM5 · B850I

ASUS ROG Strix B850-I Gaming WiFi

Mini-ITX · DDR5 · 2 DIMMs · 10-phase VRM · 7

Quality
65
VRM
36
Value
37
Amazon
$334
ASUS ROG Strix B850-I Gaming WiFi
View ASUS ROG Strix B850-I Gaming WiFi Gallery in high resolution
$334
Available Updated 3 days, 15 hours ago Prime FBA
Overall64.8
VRM36.0
Chipset89.0
Expansion / storage44.0
Connectivity67.0
Audio88.0
Quality / price36.8
$334 on Amazon Motherboard table Compare this motherboard

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Written analysis

ASUS ROG Strix B850-I Gaming WiFi at a glance

The ASUS ROG Strix B850-I Gaming WiFi uses the Mini-ITX form factor, AM5 socket, and B850I chipset. This is a balanced mainstream platform: enough expansion and connectivity for a performance PC without paying only for flagship extras.

Memory support is DDR5 across 2 DIMM slots, with up to 128 GB and rated overclocked speeds up to 8400 MT/s. ECC modules are accepted, subject to CPU support. XMP / EXPO memory-profile support is recorded for easier tuning.

Best fit: a performance gaming and productivity PC that needs a balanced board without workstation-class excess.

Power delivery

The calculated VRM score is 36.0, placing the power delivery in the entry-level class. The board lists 10 CPU power phases, 90 A power stages in a 10+2+1 layout. CPU power input is listed as 1. It is best paired with mainstream 65–105 W-class processors and good case airflow.

Expansion and storage

The expansion and storage score is 44.0: focused on the essentials. The platform supports PCIe 5.0. Physical expansion includes 1 ×16 slot.

On-board storage consists of 2 M.2 slots supporting PCIe 5.0 x4, PCIe 4.0 x4 and 2 SATA ports. Supported M.2 lengths are listed as 2242, 2260, 2280. The two-slot layout covers a typical OS-and-games or OS-and-project-drive setup.

Connectivity and rear I/O

The connectivity score is 67.0, rated adequate . Wireless networking is Wi-Fi 7 ; wired networking is 1 x Intel® 2.5Gb Ethernet at up to 2500 Mbps. Bluetooth 5.4 is included. The recorded USB provision is 8 rear connections and 1 front-panel connections. The specification sheet below separates every USB speed and connector type.

Display connectivity includes HDMI 2.1, USB-C DisplayPort. These motherboard outputs require a processor with integrated graphics.

Audio

The audio score is 88.0. This is a high-end onboard implementation using ALC4080, suitable for good headsets, powered speakers, and everyday content work. The rear panel has 3 analogue jacks. Optical S/PDIF is present for digital audio equipment.

Buying verdict

Overall quality is 64.80, a mainstream result. The essential platform features are covered, while premium I/O and tuning extras are more selective.

At the recorded Amazon price, the quality-to-price score is 36.8. The nearby-board comparison below may reveal a better-equipped option at a similar price.

Board data

Full specifications

Platform, expansion, storage, rear I/O, internal headers, networking, audio, and board controls in one sheet.

General

Manufacturer
ASUS
Motherboard
ASUS ROG Strix B850-I Gaming WiFi
Chipset / socket
B850I / AM5
Form factor
Mini-ITX
Launch price
—
Amazon price
$334
Availability
In stock
Price updated
3 days, 15 hours ago

VRM

CPU phases
10 (90 A)
Power design
10+2+1
EPS connector
1

Memory

Type / slots
DDR5 / 2 DIMMs
Max capacity / OC
128 GB / 8400 MT/s
XMP / EXPO
Yes
ECC
Modules supported

PCIe

Supported version
PCIe 5.0
x16 physical
1
x16 Gen 5
1

Storage

M.2 slots
2
M.2 lengths
2242, 2260, 2280
M.2 modes
PCIe 5.0 x4, PCIe 4.0 x4
SATA ports
2

Display outputs

HDMI
Yes · 2.1 · 4K@60Hz
DisplayPort
No
USB-C DisplayPort
Yes · 1.4a · 4K@60Hz

USB

Rear USB 2.0
2
Rear USB 3.2 Gen 2 Type-A 10 Gbps
4
Rear USB 3.2 Gen 2 Type-C 10 Gbps
1
Rear USB 3.2 Gen 2×2 Type-C 20 Gbps
1
Front USB 3.2 Gen 2 Type-C 10 Gbps
1
Front USB-C PD
15 W
Header USB 2.0
2
Header USB 3.2 Gen 1 Type-A 5 Gbps
2

Networking

Ethernet
1 x Intel® 2.5Gb Ethernet
LAN ports
1
LAN speed
2500 Mbps
Wi-Fi
7
Wi-Fi bandwidth
160MHz
Bands
2.4/5/6GHz
Antenna connectors
2
Bluetooth
5.4

Audio

Chipset
ALC4080
Analog jacks
3
Gold-plated jacks
No
Optical S/PDIF
Yes
Spatial audio
No

Buttons

BIOS flashback
Yes
Clear CMOS
Yes
Q-Flash Plus
No
Smart button
No
Onboard start / reset
No

Additional information

Memory notes
Supports up to 8400+MT/s (OC) with Ryzen™ 9000 & 8000 & 7000 Series Processors. Supports ECC and Non-ECC, Un-buffered DIMM. Supports AMD Extended Profiles for Overclocking (EXPO™) and ASUS Enhanced Memory Profile (AEMP). Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration. Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.
Display notes
Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications. VGA resolution support depends on processors' or graphic cards' resolution.
Expansion notes
The PCIe generation of the x16 slot depends on the installed CPU. It operates at PCIe 5.0 with AMD Ryzen™ 9000 & 7000 Series Desktop Processors and at PCIe 4.0 with AMD Ryzen™ 8000 Series Desktop Processors.
M.2_1
5.0 4 · 2242, 2260, 2280 · CPU — The PCIe version and speed of this slot depend on the installed CPU. It supports PCIe 5.0 x4 with AMD Ryzen 7000/9000 Series CPUs and PCIe 4.0 x4 with AMD Ryzen 8000 Series CPUs.
M.2_2
5.0 4 · 2242, 2260, 2280 · CPU — The PCIe version and speed of this slot depend on the installed CPU. It supports PCIe 5.0 x4 with AMD Ryzen 7000/9000 Series CPUs and PCIe 4.0 x4 with AMD Ryzen 8000 Series CPUs.
Storage notes
Specifications vary by CPU types.
USB notes
The rear USB 10Gbps Type-C port supports DP Alt mode. The front USB Type-C port supports power delivery output of max. 5V/3A (15W).
Audio notes
ROG SupremeFX 7.1 Surround Sound. Features Savitech SV3H712 AMP, SupremeFX Shielding Technology, premium audio capacitors, and an audio cover. Supports impedance sense for front and rear headphone outputs, jack-detection, multi-streaming, and front panel jack-retasking. High quality 120 dB SNR stereo playback output and 110 dB SNR recording input. Supports up to 32-Bit/384 kHz playback on the front panel. A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
Networking notes
Wi-Fi features may vary depending on the operating system. For Windows 11, Wi-Fi 7 will require 24H2 or later version for full functions, Windows 11 21H2/22H2/23H2 only supports Wi-Fi 6E. For Windows 10, only Wi-Fi 6 is supported. Wi-Fi 6GHz frequency band and bandwidth regulatory may vary between countries. The Bluetooth® version may vary, please refer to the Wi-Fi module manufacturer's website for the latest specifications. Wi-Fi has up to 2.9Gbps transfer rate.
Button notes
The motherboard includes a FlexKey button.
Fan / RGB headers
1 CPU · 1 OPT · 1 AIO · 1 chassis · 2 ARGB · — RGB
Thermal sensors
1
Other headers
Front audio · System panel
Dimensions
17 cm x 17 cm

Extracted notes sit here. Official manufacturer copy is at the bottom of the page.

Amazon

Price history

Nearby quality

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VRM fit

VRM-appropriate CPUs

AM5 processors whose TDP sits in this board’s VRM window. Socket match is required; chipset extras still matter on sTR5. This is a power-delivery filter, not a ranked CPU guide.

Open AM5 CPUs in the CPU table

Discussion

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Vendor copy

Official manufacturer data

Raw manufacturer text kept for reference. Structured specs above are extracted from this copy and are the source for scores and tables.

Memory

2 x DIMM slots, max. 128GB, DDR5
Supports up to 8400+MT/s (OC) with Ryzen™ 9000 & 8000 & 7000 Series Processors
ECC and Non-ECC, Un-buffered DIMM
Dual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO™)
ASUS Enhanced Memory Profile (AEMP)
* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/.
** Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.

Graphics

1 x HDMI™ port***  
1 x USB 10Gbps ports support USB Type-C® display outputs****
* Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications.
*** Supports 4K@60Hz as specified in HDMI 2.1.
****Supports max. 4K@60Hz as specified in DisplayPort 1.4a
***** VGA resolution support depends on processors' or graphic cards' resolution.

Expansion slots

AMD Ryzen™ 9000 & 7000 Series Desktop Processors
1 x PCIe 5.0 x16 slot with Q-Release Slim
AMD Ryzen™ 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot with Q-Rlease Slim 
- To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.

Storage

Storage
Total supports 2 x M.2 slots and 2 x SATA 6Gb/s ports

AMD Ryzen™ 7000 & 9000 Series Desktop Processors
M.2_1 (Key M), type 2242/2260/2280 (supports PCIe 5.0x4 mode)
M.2_2 (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)
AMD Ryzen™ 8000 Series Desktop Processors
M.2_1 (Key M), type 2242/2260/2280 (supports PCIe 4.0x4 mode)
M.2_2 (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)*
* Specifications vary by CPU types.

USB

USB
Rear USB (Total 8 ports)
1 x USB 20Gbps port(s) (1 x USB Type-C®)
5 x USB 10Gbps port(s) (4 x Type-A + 1 x USB Type-C®)
2 x USB 2.0 port(s) (2 x Type-A)

Front USB (Total 5 ports)
1 x USB 10Gbps
1 x USB 5Gbps header(s) support(s) 2 additional USB 5Gbps ports
1 x USB 2.0 header(s) support(s) 2 additional USB 2.0 ports
USB Type-C® power delivery output: max. 5V/3A

Internal I/O

Fan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin Extra Flow Fan header
1 x 4-pin AIO Pump header
1 x 4-pin Chassis Fan headers
Power Related
1 x 24-pin Main Power connector
1 x 8-pin +12V CPU Power connector
Storage Related
2 x M.2 slots (Key M)
2 x SATA 6Gb/s ports
USB
1 x USB 10Gbps connector (supports USB Type-C®)
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
1 x USB 2.0 headers support 4 additional USB 2.0 ports
Miscellaneous
2 x Addressable Gen 2 headers
1 x CPU Over voltage jumper
1 x Front Panel Audio header (F_AUDIO)
1 x 10-1 pin Front System Panel header
1 x Thermal Sensor header

Rear I/O

1 x USB 20Gbps port(s)
5 x USB 10Gbps port(s) (4 x Type-A + 1 x USB Type-C® with DP Alt mode)
2 x USB 2.0 port(s) (2 x Type-A)
1 x HDMI™ port
1 x Wi-Fi module
1 x Intel® 2.5Gb Ethernet port
3 x Audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack™ button
1 x Clear CMOS button
1 x FlexKey button

Wireless

Wi-Fi 7*
2x2 Wi-Fi 7 (802.11be)
Supports 2.4/5/6GHz frequency band**
Supports Wi-Fi 7 160MHz bandwidth, up to 2.9Gbps transfer rate.
Bluetooth® v5.4***

*Wi-Fi features may vary depending on the operating system
For Windows 11, Wi-Fi 7 will require 24H2 or later version for full functions, Windows 11 21H2/22H2/23H2 only supports Wi-Fi 6E.
For Windows 10, only Wi-Fi 6 is supported.
** Wi-Fi 6GHz frequency band and bandwidth regulatory may vary between countries.
*** The Bluetooth® version may vary, please refer to the Wi-Fi module manufacturer's website for the latest specifications.

Audio

ROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080*
- Impedance sense for front and rear headphone outputs
- Supports: Jack-detection, Multi-streaming, Front Panel MIC Jack-retasking
- High quality 120 dB SNR stereo playback output and 110 dB SNR recording input
- Supports up to 32-Bit/384 kHz playback on front panel
Audio Features
- SupremeFX Shielding Technology
- Savitech SV3H712 AMP
- Rear optical S/PDIF out port
- Premium audio capacitors
- Audio cover
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
** The LINE OUT port on the rear panel does not support spatial audio. If you wish to use spatial audio, make sure to connect your audio output device to the audio jack on the front panel of your chassis or use a USB interface audio device.

Special features

Extreme Engine Digi+
- 5K Black metallic capacitors
ASUS Q-Design
- M.2 Q-Latch
- M.2 Q-Slide
- PCIe Slot Q-Release Slim (with PCIe SafeSlot)
- Q-Antenna
- Q-Dashboard
- Q-DIMM
- Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green])
- Q-Slot
ASUS Thermal Solution
- M.2 heatsink backplate
- M.2 heatsink
ASUS EZ DIY
- BIOS FlashBack™ button
- BIOS FlashBack™ LED
- Clear CMOS button
- ProCool
- Pre-mounted I/O shield
- SafeSlot
- SafeDIMM
Aura Sync
- Addressable Gen 2 headers

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