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Compact Mini-ITX motherboard with massive heatsinks, integrated I/O shield and L-shaped backplate in dark finish

ASUS

ASUS AMD motherboard ROG STRIX X870-I GAMING WIFI

SKU CH-ZMD3-HRRYH

Mini-ITX AM5 board paired with a 16-core Ryzen 9 9950X3D, DDR5 to 8400 MT/s, PCIe 5.0 M.2, Wi-Fi 7 and 2.5 Gbps LAN

  • 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

CPU +9 9950X3D

  • Ready for advanced AI workloads with high-performance connectivity
  • Supports Ryzen 7000, 8000 and 9000 series processors on AM5 socket
  • AI Overclocking, AI Cooling II, AI Networking and AEMP simplify setup
  • 10+2+1 power stages rated at 110A with ProCool II connectors
  • PCIe 5.0 and 4.0 M.2 slots with substantial cooling solutions

Compact AM5 platform with Ryzen 9 9950X3D

This bundle pairs a Mini-ITX X870 board with a 170W 16-core processor that carries 128MB of L3 cache. It targets builders who need maximum compute density in a small chassis and want AI-ready connectivity from a single SKU. The 10+2+1 power stage rated at 110A per stage supports the high current demand of the included CPU.

Suits small-form-factor workstations

The board provides one PCIe 5.0 x16 slot and one PCIe 5.0 M.2 slot driven by Ryzen 9000 series processors, plus a second PCIe 4.0 M.2 slot from the chipset. Only two SATA ports are available, so storage arrays beyond a pair of drives require the M.2 sockets. Four DDR5 slots accept up to 96GB at 8400+ MT/s with the supplied 9000 series chip.

Sustained loads stay controlled by the integrated

Massive heatsinks with an L-shaped backplate and high-conductivity pads cover the VRM and both M.2 slots, while AI Cooling II manages fan curves across the 4-pin headers. The ProCool II 8-pin and 24-pin connectors ensure stable delivery during long compile or render sessions, and Wi-Fi 7 with 320MHz channels maintains throughput without thermal throttling.

How it compares

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

Price $1,241.99
Pricier than about 91% 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 board fit a standard Mini-ITX case and what clearances should I check?

The board is Mini-ITX so it fits standard Mini-ITX cases. Verify CPU-cooler height against the massive heatsinks and L-shaped backplate, and ensure the 8-pin +12V and 24-pin power connectors have cable routing room.

Which memory kits run at the rated speeds without manual tuning?

DDR5 kits up to 8400 MT/s on Ryzen 9000, 8600 MT/s on Ryzen 8000, or 8000 MT/s on Ryzen 7000 are supported via AEMP. The board has two 288-pin slots for a maximum of 96 GB of non-ECC un-buffered DDR5.

What storage drives can I install and how many?

One PCIe 5.0 M.2 2280 slot (Ryzen 9000 or 7000) or PCIe 4.0 (Ryzen 8000), plus one PCIe 4.0 M.2 slot from the X870 chipset, and two SATA 6 Gb/s ports for additional drives.

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