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Compact Mini-ITX motherboard with dark heatsinks, integrated I/O shield, and Ryzen 9 9950X3D CPU installed

ASUS

ASUS ROG Strix B850-I Gaming WiFi & Ryzen 9 9950X3D AMD motherboard combo

SKU CH-3HAW-2M5AB

Mini-ITX AM5 combo pairs a 16-core Ryzen 9 9950X3D with a B850 board offering 10+2+1 70A power stages, dual PCIe 5.0 M.2 slots, WiFi 7, 2.5Gbps LAN and 96GB DDR5 capacity

  • CPU Socket TypeAM5
  • ChipsetAMD B850
  • Number of Memory Slots2x288pin (DDR5)
  • Maximum Memory Supported96GB
  • Channel SupportedDual Channel
  • ECC SupportedYes

Motherboard ROG STRIX B850-I GAMING WIFI

Struck-through versions exist but are not stocked here.

CPU + Ryzen 9 9950X3D

  • Ready for Ryzen 9000, 8000 and 7000 series on AM5 socket
  • 10+2+1 power stages rated 70A each with ProCool connectors
  • Dual DDR5 slots up to 96GB with EXPO and AEMP support
  • Two PCIe 5.0 M.2 slots, one heatsinked, for fast storage
  • WiFi 7, Bluetooth 5.4 and 2.5Gbps LAN for high-speed networking

Combo for compact AM5 builds

This bundle pairs the ROG Strix B850-I Gaming WiFi motherboard with the Ryzen 9 9950X3D processor. It targets enthusiasts building small-form-factor systems that demand high core counts and large cache for gaming and creative workloads. The Mini-ITX board delivers a full feature set in a 170 mm square footprint.

DIY-friendly Mini-ITX installation

A pre-mounted I/O shield, Q-Release Slim for the PCIe slot, Q-Slide and Q-Latch for both M.2 drives, and a Q-Antenna make assembly straightforward in tight cases. The most common issue is cooler clearance; the integrated VRM heatsink and I/O cover restrict the height of air coolers and the thickness of AIO cold plates, so verify dimensions before purchasing.

128 MB L3 cache decides fit

The 9950X3D provides 128 MB of L3 cache, the defining spec for latency-sensitive gaming performance. If your workload benefits from that cache capacity, this combo is the correct choice; if not, a standard Ryzen 9000 series CPU on the same board will cost less.

Highlights

  • Ready for Ryzen 9000, 8000 and 7000 series on AM5 socket
  • 10+2+1 power stages rated 70A each with ProCool connectors
  • Dual DDR5 slots up to 96GB with EXPO and AEMP support
  • Two PCIe 5.0 M.2 slots, one heatsinked, for fast storage
  • WiFi 7, Bluetooth 5.4 and 2.5Gbps LAN for high-speed networking

Specifications

BrandASUS
ModelROG STRIX B850-I GAMING WIFI+R9 9950X3D
CPU Socket TypeAM5
ChipsetAMD B850
Number of Memory Slots2x288pin (DDR5)
Maximum Memory Supported96GB
Channel SupportedDual Channel
ECC SupportedYes
Buffer SupportedUn-buffered
Memory FeatureDual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO)
ASUS Enhanced Memory Profile (AEMP)
PCI Express 5.0 x16AMD Ryzen 9000 & 7000 Series Desktop Processors
1 x PCIe 5.0 x16 slot(s)
PCI Express 4.0 x16AMD Ryzen 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot(s)
Serial ATA (SATA)2 x SATA 6Gb/s
M.2AMD Ryzen 9000 & 7000 Series Desktop Processors*
M.2_1 slot (Key M), type02242/2260/2280 (supports PCIe 5.0 x4 mode)
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)
AMD Ryzen 8000 Series Desktop Processors*
M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
SATA RAIDAMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1
Audio ChipsetRealtek ALC4080
Audio ChannelsROG 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
- Unique de-pop circuit
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Back I/O Ports1 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
Onboard USB1 x USB 10Gbps connector (support(s) USB Type-C)
1 x USB 5Gbps header(s) support(s) 2 additional USB 5Gbps ports
1 x USB 2.0 header(s) support(s) 4 additional USB 2.0 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)
1 x Extra Flow Fan header(s)
Miscellaneous
2 x Addressable Gen 2 header(s)
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
Form FactorMini ITX
Dimensions (W x L)6.7" x 6.7"
Power Pin1 x 24-pin Main Power connector
1 x 8-pin +12V CPU Power connector
BIOS Feature256 Mb Flash ROM, UEFI AMI BIOS // UEFI AMI BIOS(text-based)
SoftwareROG Exclusive Software
- ROG CPU-Z
- Dolby Atmos
ASUS Exclusive Software
Armoury Crate
- AIDA64 Extreme (60 days free trial)
- Aura Creator
- Aura Sync
- GameFirst
- HWiNFO
- Power Saving
ASUS AI Advisor
ASUS DriverHub
ASUS GlideX
TurboV Core
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
Windows 11Windows 11, Windows 10 64-bit
Windows 11 (22H2 later)
FeaturesExtreme 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
- VRM heatsink design
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 header(s)
Package Contents1 x AMD Ryzen 9 9950X3D CPU
Cables
1 x Panel cable
1 x ROG USB2.0 splitter cable
2 x SATA 6Gb/s cables
Miscellaneous
1 x ASUS WiFi Q-Antenna
1 x Cable ties package
1 x M.2 backplate Q-Latch package(s)
1 x M.2 Q-Slide package
1 x ROG key chain
1 x M.2 backplate rubber package(s)
1 x Screw package(s) for M.2 SSD
Documentation
1 x Quick start guide

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the included Ryzen 9 9950X3D fit the AM5 socket on this motherboard without a BIOS update?

Yes, the board ships with an AM5 socket and the combo pairs the 9950X3D with the B850 chipset so the CPU is supported out of the box.

How much DDR5 memory can I install and what speed profiles are supported?

The board has two 288-pin slots for up to 96 GB of dual-channel DDR5 and supports both AMD EXPO and ASUS AEMP profiles for automatic overclocking.

Which M.2 slots run at PCIe 5.0 speeds and do they both fit full-length 2280 drives?

Both M.2 slots accept 2242, 2260 and 2280 drives and each operates at PCIe 5.0 x4 with Ryzen 9000 or 7000 series processors.

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