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Compact Mini-ITX motherboard with dark heatsinks, integrated I/O shield and installed Ryzen 9 CPU

ASUS

ASUS ROG STRIX X870-I GAMING WIFI AMD motherboard & Ryzen 9 9950X3D CPU combo

SKU CH-2Z3Z-528G4

A Mini-ITX AM5 motherboard paired with a 16-core Ryzen 9 9950X3D processor featuring 128MB L3 cache and integrated Radeon graphics

  • ChipsetAMD X870
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardDDR5 4400
  • Maximum Memory Supported96GB
  • ECC SupportedNon-ECC
  • Buffer SupportedUn-buffered

model ROG STRIX X870-I GAMING WIFI

+CPU + Ryzen 9 9950X3D

  • Ready for AI workloads with power and connectivity for demanding applications
  • 10+2+1 power stages rated at 110A per stage with ProCool II connectors
  • AMD Ryzen 9 9950X3D delivers 128MB L3 cache on TSMC 4nm Zen 5 architecture
  • WiFi 7 2x2 supports 320MHz bandwidth up to 6.5Gbps transfer rate
  • DDR5 memory overclocks to 8400+ MT/s with Ryzen 9000 series processors

Combo Purpose

This ASUS ROG STRIX X870-I GAMING WIFI motherboard paired with the Ryzen 9 9950X3D CPU targets enthusiasts building a compact AM5 system. The Mini ITX board delivers a 10+2+1 power stage design rated for 110A per stage and includes WiFi 7 plus USB4 connectivity. The processor brings 16 cores with 128MB L3 cache and integrated Radeon graphics for AI-ready workloads.

Build Checks

Verify your chassis fits a Mini ITX board and clears the substantial heatsinks with integrated I/O cover and L-shaped backplate. Confirm the power supply provides a 24-pin main connector plus an 8-pin +12V CPU connector for the 170W processor. Ensure DDR5 modules match the 288-pin DIMM slots and that your cooling solution mounts to the AM5 socket with a 4-pin CPU or AIO pump header.

Sustained Load Behaviour

The 10+2+1 power solution with ProCool II connectors and alloy chokes maintains stable delivery to the 16-core CPU during extended multi-threaded tasks. Large heatsinks with high-conductivity thermal pads dissipate heat from the VRM and both M.2 slots, preventing throttling under continuous load. AI Cooling II adjusts fan curves dynamically while the 110A per stage rating supports prolonged PBO enhancement without voltage droop.

Highlights

  • Ready for AI workloads with power and connectivity for demanding applications
  • 10+2+1 power stages rated at 110A per stage with ProCool II connectors
  • AMD Ryzen 9 9950X3D delivers 128MB L3 cache on TSMC 4nm Zen 5 architecture
  • WiFi 7 2x2 supports 320MHz bandwidth up to 6.5Gbps transfer rate
  • DDR5 memory overclocks to 8400+ MT/s with Ryzen 9000 series processors

Specifications

BrandASUS
ModelROG STRIX X870-I GAMING WIFI+R9 9950X3D
ChipsetAMD X870
Number of Memory Slots4x288pin (DDR5)
Memory StandardDDR5 4400
Maximum Memory Supported96GB
ECC SupportedNon-ECC
Buffer SupportedUn-buffered
Memory Feature2 x DIMM slots, max. 96GB, DDR5
Supports up to
8400+MT/s(OC) with Ryzen™ 9000 Series Processors,
8600+MT/s(OC) with Ryzen™ 8000 Series Processors,
8000+MT/s(OC) with Ryzen™ 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
PCI Express 5.0 x16AMD Ryzen 9000 & 7000 Series Desktop Processors
1 x PCIe 5.0 x16 slot
PCI Express 4.0 x16AMD Ryzen 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x8/x4 mode)
Serial ATA (SATA)2 x SATA 6Gb/s
M.2AMD Ryzen 9000 & 7000 Series Desktop Processors*
M.2_1 slot (Key M), type 2280(supports PCIe 5.0 x4 mode)
AMD Ryzen 8000 Series Desktop Processors*
M.2_1 slot (Key M), type 2280(supports PCIe 4.0 x4 mode)
AMD X870 Chipset
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4)
*** Install ROG FPS Card to support 2 x SATA 6Gb/s ports.
SATA RAID* AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 7*
2x2 Wi-Fi 7 (802.11be)
Supports 2.4/5/6GHz frequency band**
Support Wi-Fi 7 320MHz bandwidth, up to 6.5Gbpstransfer rate.
*Wi-Fi features may vary depending on the operating system
For Windows 11, Wi-Fi 7 will require24H2 or later version for full functions, Windows 11 21H2/22H2/23H2 only support Wi-Fi 6E.
For Windows 10, please note that no driver is available, refer to the Wi-Fi chipset vendor's website for details.
** Wi-Fi 6GHz frequency band and bandwidth regulatory may vary between countries.
BluetoothBluetooth v5.4***
*** The Bluetooth version may vary, please refer to the Wi-Fi module manufacturer's website for the latest specifications.
USB 3.0USB4
Onboard USBUSB
1 x USB 10Gbps connector (supports USB Type-C® )
1 x USB 5Gbps header support(s) 2
additional USB 5Gbps ports
Other ConnectorsFan and Cooling Related
1 x 4-pin CPU Fan header(s)
1 x 4-pin AIO Pump header(s)
1 x 4-pin Chassis Fan header(s)
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)
Miscellaneous
2 x Addressable Gen 2 headers
1 x 2-pin Power Button header
1 x Thermal Sensor header
2 x USB Type-C® connectors to install ROG FPS card
ROG FPS card
2 x SATA 6Gb/s ports
1 x CPU Over Voltage jumper
1 x Front Panel header
1 x Alteration PCIe Mode switch
2 x USB 2.0 headers support 3
additional USB 2.0 ports
Form FactorMini ITX
Dimensions (W x L)6.7" x 6.7"
BIOS Feature256 Mb Flash ROM, UEFI AMI BIOS
SoftwareROG Exclusive Software
- ROG CPU-Z
- Dolby Atmos
ASUS Exclusive Software
Armoury Crate
- AIDA64 (60 days free trial)
- Aura Creator
- Aura Sync
- Fan Xpert 4 (with AI Cooling II)
- GameFirst
- HWiNFO
- Power Saving
ASUS Driver Hub
ASUS GlideX
Adobe Creative Cloud (Free Trial)
Norton 360 for Gamers (60 Days Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
AI Overclocking Guide
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI
BIOS EZ Mode
- ASUS
MyHotkey
FlexKey
Dynamic OC Switcher
FeaturesASUS Q-Design
- M.2 Q-Latch
- PCIe Slot Q-Release Slim (with PCIe SafeSlot)
- Q-Antenna
- Q-Code
- Q-DIMM
- Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green])
- Q-Slot
ASUS Thermal Solution
- M.2 heatsink
- Aluminum backplate
ASUS EZ DIY
- BIOS FlashBack™ button
- BIOS FlashBack™ LED
- Clear CMOS button
- ProCool II
- Pre-mounted I/O shield
- SafeSlot
- SafeDIMM
Aura Sync
- Addressable Gen 2 header(s)
ROG STRIX HIVE II
1 x USB Type-C® connects to motherboard
2 x USB 10Gbps port ( 1 x Type-A + 1 x USB Type-C®)
1 x Headphone jack with mic in
1 x Power button
1 x
Package Contents1 x AMD Ryzen 9 9950X3D CPU
1 x Shin-Etsu X-23-7921-5 (1.8g)
Cables
1 x Panel cable
1 x ROG USB2.0 splitter cable
2 x SATA 6Gb/s cables
ROG FPS Card
1 x ROG FPS Card
ROG STRIX HIVE II
1 x ROG STRIX HIVE II
1 x USB Type-C® power connection cable
Miscellaneous
1 x ASUS WiFi Q-Antenna
1 x Cable ties package
1 x M.2 Q-Latch package(s)
1 x ROG key chain
1 x ROG Strix stickers
1 x M.2 rubber package(s)
Documentation
1 x Quick start guide

Other versions of this model

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Questions about this item

Does the combo ship with the CPU cooler or do I need to buy one separately?

The bundle contains the motherboard and the Ryzen 9 9950X3D processor only. A compatible AM5 cooler is not included and must be purchased separately.

Which DDR5 speed should I target for the 9950X3D on this board?

The board supports DDR5 up to 8400 MT/s overclocked with Ryzen 9000 series CPUs, so a high-frequency kit rated for 8000 MT/s or higher will let you use the full range.

What does the 170 W TDP mean for daily use with this CPU?

The 170 W rating is the processor base power; the 10+2+1 power stage design rated at 110 A per stage and the large heatsinks are built to handle that sustained load.

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