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ATX motherboard with massive heatsinks, integrated I/O cover, ROG Memory Fan and DIMM.2 card installed

ASUS

ASUS ROG Crosshair X870E Apex + Ryzen 7 9700X AMD motherboard combo

SKU CH-8J7G-W3ZAN

An AM5 motherboard with 18+2+2 power stages, two DDR5 slots supporting 128 GB, three PCIe 5.0 M.2 slots, Wi-Fi 7 and 5 Gb Ethernet, bundled with a Ryzen 7 9700X processor

  • ProcessorAMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desk
  • ChipsetAMD X870E
  • Form factorATX
  • CPU socketAM5
  • Memory slot count2 × 288pin (DDR5)
  • Supported memory2 x DIMM slots, max. 128 GB, DDR5 Supports up to 8200+MT/s(O

Model ROG CROSSHAIR X870E APEX

CPU +Ryzen 7 9700X

  • 18+2+2 power stages with 110A and 80A ratings for stable high-current delivery
  • DDR5 memory overclocking up to 9600 MT/s enabled by dedicated ROG Memory Fan
  • Three PCIe 5.0 M.2 slots plus two PCIe 4.0 M.2 slots on ROG DIMM.2 card
  • Wi-Fi 7 with 320MHz bandwidth for up to 6.5Gbps wireless throughput
  • AI Overclocking, AI Cooling II and AI Networking II simplify tuning and optimise performance

Combo purpose

This bundle pairs the ROG Crosshair X870E Apex motherboard with a Ryzen 7 9700X processor, delivering an AM5 platform ready for 9000, 8000 and 7000 series CPUs. It targets enthusiasts who want a single SKU for high-frequency DDR5 memory and multi-GPU PCIe 5.0 layouts.

Build integration

The board fits standard ATX chassis and requires two 288-pin DDR5 modules for up to 128 GB capacity. It provides two PCIe 5.0 x16 slots with Q-Release Slim, three onboard PCIe 5.0 M.2 slots plus two PCIe 4.0 M.2 slots on the included DIMM.2 card, four SATA 6Gb/s ports, 5 Gb Ethernet, Wi-Fi 7 and USB4 connectivity.

Bundled extras

The ROG Memory Fan kit mounts directly to the DIMM area to sustain memory clocks beyond 9600 MT/s. The DIMM.2 card adds two additional M.2 slots with dedicated cooling, while AI Overclocking, AI Cooling II and AI Networking II firmware automates voltage, fan curves and traffic prioritisation without manual tuning.

How it compares

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

Price $1,150.99
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
Product lineROG
Model nameROG CROSSHAIR X870E APEX +(R7 9700X)
Part numberROG CROSSHAIR X870E APEX +(R7 9700X)
Processor
ProcessorAMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors*
* Refer to https://www.asus.com/support/download-center/ for CPU support list.
CPU socketAM5
ChipsetAMD X870E
Memory
Memory slot count2 × 288pin (DDR5)
Supported memory2 x DIMM slots, max. 128 GB, DDR5
Supports up to
8200+MT/s(OC) with Ryzen™ 9000 Series Processors,
9600+MT/s(OC) with Ryzen™ 8000 Series Processors
8000+MT/s(OC) with Ryzen™ 7000 Series Processors,
ECC and Non-ECC, Un-buffered DIMM*
Dual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO™)
ASUS Enhanced Memory Profile (AEMP)
* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information sit
Max supported RAM128 GB
ECC supportNon-ECC
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsSupports 5 x M.2 slots and 4 x SATA 6Gb/s ports*
AMD Ryzen™ 9000 & 7000 Series Desktop Processors***
M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)
M.2_3 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 (Not supports)
M.2_3 slot (Key M), type 2242/2260/2280 (Not supports)
AMD X870E Chipset
DIMM.2_1 slot (Key M), type 2230/2242/2260/2280
SATA and RAID support0/1/5/10
Audio & video
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
- Gold-plated audio jacks
- Rear optical S/PDIF out port
- Premium audio capacitors
- Audio cover
* A chassis with an HD audio module in the front panel is required to support 7.1 Su
Connectivity
Second LAN controller1 x Realtek 5Gb Ethernet
ASUS LANGuard
Maximum network speed5 Gbit/s
Bluetooth supportYes
Ports & slots
PCIe 4.0 x16 slotsAMD Ryzen™ 8700 & 8600 & 8400 Series Desktop Processors*
2 x PCIe 4.0 x16 slots with Q-Release Slim (only supports PCIEx16_1 & total bandwidth for x8, PCIEx16_2 will be disabled)
AMD Ryzen™ 8500 & 8300 Series Desktop Processors*
2 x PCIe 4.0 x16 slots with Q-Release Slim (only supports PCIEx16_1 & total bandwidth for x4, PCIEx16_2 will be disabled)
AMD X870E Chipset
1 x PCIe 4.0 x4 slot
1 x PCIe 3.0 x1 slot
* Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/).
- To ensure compatibility of the device installed, please refer to https
Rear panel ports2 x USB4® (40 Gbit/s) ports (2 x USB Type-C®)
6 x USB 10 Gbit/s ports (5 x Type-A + 1 x USB Type-C®)
2 x USB 5 Gbit/s ports (2 x Type-A)
1 x Wi-Fi module
1 x Realtek 5Gb Ethernet port
1 x PS/2 keyboard/mouse combo port
2 x Gold-plated audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack™ button
1 x Clear CMOS button
Size & build
Form factorATX
Width and length12 in × 9.6 in ( 30.5 cm × 24.4 cm )
Compatibility
Windows 11 supportSupported

Other versions of this model

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Questions about this item

How many 110 A power stages feed the CPU VRM before thermal throttling becomes the limiting factor?

The board uses 18+2+2 stages with 110 A units for the 18 Vcore and 2 VSoC phases, so sustained load is capped by the cooling capacity of the massive heatsink and heatpipe assembly.

What acoustic and thermal load should I expect from the VRM and chipset when the system runs 24/7?

Massive heatsinks with integrated I/O cover, high-conductivity thermal pads and a connecting heatpipe dissipate VRM and chipset heat passively, while the ROG Memory Fan kit adds active airflow over the DIMMs during extended sessions.

Which DDR5 memory kit speeds are validated for the included Ryzen 7 9700X without additional hardware?

The platform supports up to 8200+ MT/s with Ryzen 9000 series CPUs, and the bundled ROG Memory Fan kit is designed to help reach those frequencies on the two 288-pin DIMM slots.

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