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Black ATX motherboard with silver heatsinks, installed CPU, and four DDR5 slots

ASUS

ASUS ROG STRIX X870E-E GAMING WIFI + Ryzen 9 9900X3D combo

SKU CH-CGRC-48WAH

Pairs an AMD Ryzen 9 9900X3D processor with an X870E ATX motherboard offering 18+2+2 power stages, five M.2 slots, WiFi 7 and USB4 connectivity

  • CPU socketAMD Ryzen 9 9900 × 3D
  • ChipsetAMD X870E
  • Form factorATX
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR5 4400
  • Max supported RAM192 GB

Model ROG STRIX X870E-E GAMING WIFI

CPU +R9 9900X3D

  • Supports up to 192 GB DDR5 memory with 4 slots
  • 18+2+2 power stages rated 110 A each for stable multi-core delivery
  • Three PCIe 5.0 M.2 slots plus two PCIe 4.0 M.2 slots with substantial cooling
  • Dual USB4 Type-C ports and WiFi 7 for high-speed connectivity
  • Ryzen 9 9900X3D includes 128 MB L3 cache and AMD Radeon graphics

Combo purpose

This bundle pairs the ROG STRIX X870E-E GAMING WIFI motherboard with the Ryzen 9 9900X3D processor. The AM5 platform supports Ryzen 9000, 8000 and 7000 series CPUs. It targets builders who want a single SKU for high-end gaming and AI workloads.

Bundled advantages

The motherboard adds three PCIe 5.0 M.2 slots and two PCIe 4.0 M.2 slots, each with substantial cooling. Dual USB4 Type-C ports, a USB 20Gbps front-panel connector and a USB 10Gbps port with PD 3.0 up to 30W expand peripheral options. AI Overclocking, AI Cooling II, AI Networking and AEMP automate tuning. Dynamic OC Switcher, Core Flex, Asynchronous Clock and PBO Enhancement give manual overclocking granularity.

Build and connectivity

An 18+2+2 power solution rated for 110A per stage uses dual ProCool II connectors, alloy chokes and durable capacitors. Four DDR5 slots accept up to 192GB at 4400MT/s with ECC support. WiFi 7 and 5Gbps LAN handle networking. ROG SupremeFX 7.1 audio with ALC4080 drives front and rear headphone outputs. PCIe 5.0 x16 and PCIe 4.0 x4 slots cover graphics and add-in cards.

How it compares

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

Price $1,211.99
Pricier than about 91% 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 X870E-E GAMING WIFI+R9 9900 × 3D
Processor
CPU socketAMD Ryzen 9 9900 × 3D
ChipsetAMD X870E
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR5 4400
Max supported RAM192 GB
Memory channelsDual Channel
ECC supportYes
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
SATA and RAID support*AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/5/10 and SATA RAID 0/1/5/10. RAID 5 Funciton is only supportted by AMD Ryzen 9000 series CPU.
Audio & video
Audio chipROG 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
Audio Features
- Audio Shielding
- Savitech SV3H712 AMP
- Gold-plated audio jacks
- Rear optical S/PDIF out port
- Premium audio capacitors
- Audio cover
* The LINE OUT port on the rear panel does not support spatial audio. If you wish to use spatial audio, make sure
Sound channels7.1 Channels
Connectivity
Maximum network speed5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
PCIe 5.0 x16 slotsAMD Ryzen 9000 & 8000 & 7000 Series Desktop Processors
1 x PCIe 5.0 x16 slots (supports x16 mode)
PCIe 4.0 x16 slotsAMD X870E Chipset
1 x PCIe 4.0 x16 slot (supports x4 mode)
USB 3.0 portsUSB4
Onboard USB headers1 x USB 20 Gbit/s connector (supports USB Type-C)
2 x USB 5 Gbit/s headers support additional 4 USB 5 Gbit/s ports
3 x USB 2.0 headers support additional 6 USB 2.0 ports
Power
Power connectors1 × 24-pin Main Power connector
2 × 8-pin +12 V CPU Power connectors
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 supportSupported
More details
BIOS256 Mb Flash ROM, UEFI AMI BIOS

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Questions about this item

Will the 18+2+2 power stages rated at 110A each need replacement under heavy load?

The 18+2+2 power stages are rated for 110A per stage with high-quality alloy chokes and durable capacitors designed for sustained multi-core operation. No user-serviceable replacement is expected.

What limits the Ryzen 9 9900X3D first during all-day workloads — its 120W TDP or the 110A power stages?

The CPU has a 120W TDP and the VRM delivers 110A per stage across 18+2+2 phases, providing ample headroom. Thermal limits from the cooler typically appear before electrical limits.

How loud and hot does the combo run with AI Cooling II active all day?

AI Cooling II manages fan curves based on real-time temperatures. The motherboard includes substantial heatsinks on all five M.2 slots and VRM areas to dissipate heat quietly under sustained loads.

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