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Compact Mini-ITX board with dark heatsinks, integrated I/O cover and pre-mounted shield, paired with a Ryzen 5 9600X CPU

ASUS

ASUS ROG Strix B850-I Gaming WiFi + Ryzen 5 9600X AMD motherboard

SKU CH-J00N-YXR23

A compact AM5 motherboard paired with a Ryzen 5 9600X CPU, delivering DDR5 support up to 96 GB, twin PCIe 5.0 M.2 slots, WiFi 7, 2.5 Gb Ethernet and a 10+2+1 70 A power stage in a mini-ITX form factor

  • CPU socketAM5
  • ChipsetAMD B850
  • Form factorMini ITX
  • Memory slot count2 × 288pin (DDR5)
  • Max supported RAM96 GB
  • PCIe 5.0 x16 slotsAMD Ryzen 9000 & 7000 Series Desktop Processors 1 x PCIe 5.0
  • Compact AM5 combo bundles Ryzen 5 9600X for instant build readiness
  • 10+2+1 power stages rated 70A deliver stable CPU voltage
  • Two PCIe 5.0 M.2 slots enable fast storage expansion
  • WiFi 7 and 2.5Gb Ethernet provide high-speed networking
  • 20Gbps USB Type-C plus five 10Gbps ports connect peripherals quickly

Compact AM5 Platform for Small-Form Builds

This combo pairs an ASUS ROG Strix B850-I Gaming WiFi motherboard with an AMD Ryzen 5 9600X processor. The Mini-ITX board fits AM5 CPUs from the Ryzen 7000, 8000 and 9000 series. Two DDR5 slots support up to 96 GB of memory. A PCIe 5.0 x16 SafeSlot and dual M.2 slots handle modern GPUs and fast storage.

10+2+1 Power Stages and Heatsink Coverage

The 10+2+1 phase design is rated for 70 A per stage with ProCool connectors. Massive heatsinks and an integrated I/O cover use high-conductivity thermal pads to spread heat across the VRM and one M.2 slot. A 4-pin CPU fan header, AIO pump header, chassis fan header and extra flow header give flexible cooling control for quiet operation.

AI Overclocking, Networking II and DIY Tools

ASUS AI Advisor, AI Overclocking, AI Networking II and AEMP automate tuning for CPU, memory and traffic prioritisation. Onboard WiFi 7 (802.11 be) and Intel 2.5 Gb Ethernet provide high-speed links. Q-Release Slim, M.2 Q-Slide, Q-Latch, Q-Antenna, Q-Dashboard, Q-LED, BIOS FlashBack, Clear CMOS and FlexKey simplify assembly and troubleshooting.

How it compares

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

Price $661.99
Pricier than about 72% of the 1,906 comparable items (median $224.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameASUS
Model nameROG STRIX B850-I GAMING WIFI +R5 9600X
Part numberROG STRIX B850-I GAMING WIFI+R5 9600X
Processor
CPU socketAM5
ChipsetAMD B850
Memory
Memory slot count2 × 288pin (DDR5)
Max supported RAM96 GB
Storage
SATA ports2 x SATA 6Gb/s
M.2 slotsAMD 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 and RAID supportAMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1
Audio & video
Audio chipRealtek ALC4080
Sound 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
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
PCIe 5.0 x16 slotsAMD Ryzen 9000 & 7000 Series Desktop Processors
1 x PCIe 5.0 x16 slot(s)
PCIe 4.0 x16 slotsAMD Ryzen 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot(s)
Power
Power connectors1 × 24-pin Main Power connector
1 × 8-pin +12 V CPU Power connector
Size & build
Form factorMini ITX
Width and length6.7 in × 6.7 in
Compatibility
Windows 11 supportWindows 11, Windows 10 64-bit
Windows 11 (22H2 later)
More details
BIOS256 Mb Flash ROM, UEFI AMI BIOS // UEFI AMI BIOS(text-based)

Questions about this item

How do I install the M.2 drives into the Q-Slide and Q-Latch slots, and which step do builders often miss?

Remove the large M.2 heatsink first, slide the drive into the Q-Slide track, then press down until the Q-Latch clicks; the step most often missed is reattaching the heatsink with its thermal pad in place.

What maintenance will the 10+2+1 power stage VRM and its high-conductivity thermal pads need over time?

Clean dust from the massive heatsinks and integrated I/O cover every few months; the thermal pads are designed for the product lifetime and do not require scheduled replacement.

At what point does the single 4-pin chassis fan header become the limiting factor for case airflow under sustained loads?

The lone 4-pin chassis header can only drive one case fan directly; additional fans need a hub or splitter, so that header is the first airflow bottleneck during extended heavy use.

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