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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
  • Form factorMini ITX
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR5 4400
  • Max supported RAM96 GB
  • ECC supportNon-ECC

Model ROG STRIX X870-I GAMING WIFI

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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.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $1,479.99
Pricier than about 93% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model nameROG STRIX X870-I GAMING WIFI+R9 9950 × 3D
Processor
ChipsetAMD X870
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR5 4400
Max supported RAM96 GB
ECC supportNon-ECC
BufferingUn-buffered
Storage
SATA ports2 x SATA 6Gb/s
M.2 slotsAMD 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 and RAID support* AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1
Connectivity
Maximum network speed2.5 Gbit/s
Bluetooth supportv5.4***
*** The Bluetooth version may vary, please refer to the Wi-Fi module manufacturer's website for the latest specifications.
Ports & slots
PCIe 5.0 x16 slotsAMD Ryzen 9000 & 7000 Series Desktop Processors
1 x PCIe 5.0 x16 slot
PCIe 4.0 x16 slotsAMD Ryzen 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x8/x4 mode)
USB 3.0 portsUSB4
Onboard USB headersUSB
1 x USB 10 Gbit/s connector (supports USB Type-C® )
1 x USB 5 Gbit/s header support(s) 2
additional USB 5 Gbit/s ports
Size & build
Form factorMini ITX
Width and length6.7 in × 6.7 in
More details
BIOS256 Mb Flash ROM, UEFI AMI BIOS

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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