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Compact square motherboard in dark grey with large heatsinks and pre-mounted I/O shield

ASUS

ASUS ROG Strix B850-I Gaming WiFi AMD motherboard & Ryzen 9 9950X CPU Combo

SKU CH-5WBT-CHZNN

A compact AM5 motherboard paired with a 16-core Ryzen 9 9950X CPU, offering 10+2+1 power stages, dual DDR5 slots up to 96 GB, two PCIe 5.0 M.2 sockets, 2.5 Gb LAN and WiFi 7

  • 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

Les versions barrées existent, mais ne sont pas disponibles ici.

CPU + Ryzen 9 9950X

  • 16 cores and 32 threads deliver heavy multi‑tasking power
  • 7 GHz max boost enables high single‑thread speed
  • 10+2+1 power stages rated to 70 A keep voltage stable under load
  • dual PCIe 5.0 M.2 slots give fast storage expansion
  • WiFi 7 plus 2.5 Gb Ethernet provide low‑latency networking

AM5 Mini-ITX combo for high-core workloads

This bundle pairs the ROG Strix B850-I Gaming WiFi motherboard with the Ryzen 9 9950X processor. The board uses the AMD B850 chipset on a Mini-ITX form factor with an AM5 socket. The CPU delivers 16 cores and 32 threads based on Zen 5 architecture with a 5.7 GHz max boost and 64 MB L3 cache. It targets builders who need maximum multi-threaded performance in a compact chassis.

AI tuning and DIY aids simplify assembly

ASUS AI Advisor, AI Overclocking, AI Networking II and AEMP automate frequency, memory and network optimisation. The board includes PCIe Slot Q-Release Slim, M.2 Q-Slide, M.2 Q-Latch, Q-Antenna, Q-Dashboard, Q-LED, BIOS FlashBack, Clear CMOS and FlexKey buttons plus a pre-mounted I/O shield. These features reduce build friction and make post-build adjustments straightforward.

10+2+1 power stages rated to 70 A per stage

The VRM uses a 10+2+1 phase design with ProCool connectors, each stage rated for up to 70 A. This headroom supports the 9950X at stock or overclocked settings without thermal throttling. If your workload demands sustained all-core frequencies, this power delivery is the specification that determines stability.

Points forts

  • 16 cores and 32 threads deliver heavy multi‑tasking power
  • 7 GHz max boost enables high single‑thread speed
  • 10+2+1 power stages rated to 70 A keep voltage stable under load
  • dual PCIe 5.0 M.2 slots give fast storage expansion
  • WiFi 7 plus 2.5 Gb Ethernet provide low‑latency networking

Caractéristiques

BrandASUS
ModelROG STRIX B850-I GAMING WIFI+R9 9950X
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 9950X 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

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Questions sur cet article

Will the Ryzen 9 9950X fit in the AM5 socket on this board?

Yes. The motherboard uses the AM5 socket and the combo includes a Ryzen 9 9950X that is built for that socket.

How much DDR5 memory can I install and how many slots are there?

The board has two 288-pin DDR5 slots and supports up to 96 GB in dual-channel mode.

What M.2 drive sizes do the two slots accept?

Both M.2 slots accept 2242, 2260 and 2280 form factors and each runs at PCIe 5.0 x4 with Ryzen 9000 or 7000 series CPUs.

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