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Dark grey ATX motherboard with integrated I/O shield, large heatsinks and a Ryzen 7 9700X CPU in the AM5 socket

ASUS

ASUS ROG Crosshair X870E Dark Hero AMD motherboard & Ryzen 7 9700X CPU Combo

SKU CH-HFVN-4AX0R

AM5 motherboard and Ryzen 7 9700X CPU combo with DDR5 support up to 8600 MT/s, dual USB4 40 Gbps ports, five M.2 slots and 10 Gbps plus 5 Gbps LAN

  • CPU Socket TypeAM5
  • ChipsetAMD X870E
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardSupports up to 8600+MT/s(OC)/8200+MT/s(OC) with Ryzen 9000 S
  • Maximum Memory Supported256GB
  • Channel SupportedDual Channel

model ROG CROSSHAIR X870E DARK HERO

+CPU +Ryzen 7 9700X

  • AM5 socket supports Ryzen 9000, 8000 and 7000 series CPUs
  • 20 plus 2 plus 2 power stages rated at 110A each
  • 3D vapor-chamber M.2 heatsink cools one PCIe 5.0 slot
  • Dual USB4 Type-C ports deliver 40Gbps throughput
  • Wi-Fi 802.11 be and Bluetooth 5.4 provide fast wireless connectivity

Ready for advanced AI computing

This combo pairs the ROG Crosshair X870E Dark Hero motherboard with an AMD Ryzen 7 9700X processor on the AM5 socket. The board supports Ryzen 9000, 8000 and 7000 series CPUs and provides four DDR5 slots for up to 256GB of memory. It targets enthusiasts who want a high-end platform for AI workloads, content creation and gaming.

Bundled AI and overclocking tools change daily

ASUS AI Cache Boost, AI Advisor, AI Overclocking, AI Cooling II and AI Networking II automate tuning and thermal management. ROG technologies such as Dynamic OC Switcher, Core Flex, Asynchronous Clock and PBO Enhancement give manual control when needed. AEMP simplifies memory configuration across supported DDR5 speeds.

Suits builders who need maximum connectivity

Five M.2 slots, dual USB4 Type-C ports, 10Gbps and 5Gbps Ethernet, Wi-Fi 802.11 be and Bluetooth 5.4 cover storage and peripheral demands. The robust 20+2+2 power stage design with 110A ratings handles heavy loads. Users who only need a basic AM5 board or fewer M.2 slots should consider simpler models.

Highlights

  • AM5 socket supports Ryzen 9000, 8000 and 7000 series CPUs
  • 20 plus 2 plus 2 power stages rated at 110A each
  • 3D vapor-chamber M.2 heatsink cools one PCIe 5.0 slot
  • Dual USB4 Type-C ports deliver 40Gbps throughput
  • Wi-Fi 802.11 be and Bluetooth 5.4 provide fast wireless connectivity

Specifications

BrandASUS
ModelROG CROSSHAIR X870E DARK HERO +(R7 9700X)
CPU Socket TypeAM5
ChipsetAMD X870E
Number of Memory Slots4x288pin (DDR5)
Memory StandardSupports up to
8600+MT/s(OC)/8200+MT/s(OC) with Ryzen 9000 Series Processors
9600+MT/s(OC)/9200+MT/s(OC) with Ryzen 8000 Series Processors
8000+MT/s(OC)/8000+MT/s(OC) with Ryzen 7000 Series Processors
Maximum Memory Supported256GB
Channel SupportedDual Channel
ECC SupportedYes
Buffer SupportedUn-buffered
PCI Express 5.0 x16AMD Ryzen 9000 & 7000 Series Desktop Processors
2 x PCIe 5.0 x16 slots (supports x16 or x8/x8 modes)
*When both PCIEX16_1 and PCIEX16_2 are in use, they will each run in x8 mode.
AMD Ryzen 8700 & 8600 & 8400 Series Desktop Processors
2 x PCIe 4.0 x16 slots (Total bandwidth for x8)
AMD Ryzen 8500 & 8300 Series Desktop Processors
2 x PCIe 4.0 x16 slots (Total bandwidth for x4)
Serial ATA (SATA)4 x SATA 6Gb/s
M.2AMD Ryzen 9000 & 7000 Series Desktop Processors
M.2_1 slot (Key M), type 2242/2260/2280/22110 (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 (Not supports)
AMD X870E Chipset
M.2_3 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
M.2_4 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
M.2_5 slot (Key M), type 2230 (supports PCIe 4.0 x2 mode)
*When both PCIEX16_1 a
SATA RAIDAMD RAIDXpert2 Technology
Ryzen 9000 & 8000 & 7000 Series Processors: RAID 0/1/5/10
Audio ChannelsROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4082*
- 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
- ESS ES9219 QUAD DAC
- Gold-plated audio jacks
- Rear optical S/PDIF out port
- Premium audio capacitors
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound au
Max LAN Speed10Gbps + 5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Back I/O Ports2 x USB4 (40Gbps) ports (2 x USB Type-C)
9 x USB 10Gbps connector (6 x Type-A + 3 x USB Type-C)
1 x HDMI port
1 x Wi-Fi module
1 x Realtek 10Gb Ethernet port
1 x Realtek 5Gb Ethernet port
2 x Gold-plated audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack button
1 x Clear CMOS button
Onboard USB2 x USB 20Gbps connectors (support USB Type-C)
2 x USB 5Gbps headers support 4 additional USB 5Gbps ports
3 x USB 2.0 headers support 6 additional USB 2.0 ports
Other ConnectorsFan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
4 x 4-pin Chassis Fan headers
1 x W_PUMP+ header
1 x AIO Q-Connector
Storage Related
5 x M.2 slots (Key M)
4 x SATA 6Gb/s ports
Miscellaneous
3 x Addressable Gen2 headers
1 x Alteration PCIe mode switch
1 x FlexKey button
1 x Front Panel Audio header (F_AUDIO)
1 x ReTry button
1 x Start button
1 x 10-1 pin System Panel header
1 x Thermal Sensor header
1 x LN2 Mode jumper
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24-pin Main Power connector
2 x 8-pin +12V CPU Power connector
1 x 8-pin PCIe Power connector
BIOS Feature64 MB (512Mb)
Flash ROM, UEFI AMI BIOS
SoftwareROG Exclusive Software
- ROG CPU-Z
- Dolby Atmos
- Internet Security (1-year full version)
- Polymo Lighting II
ASUS Exclusive Software
Armoury Crate
- Aura Creator
- Aura Sync
- Fan Xpert 4 (with AI Cooling II)
- GameFirst
- WiFi Q-Antenna
- MLO Wizard
ASUS DriverHub
- ASUS MB Manager
- HWiNFO
- ASUS AI Advisor
- AIDA64 Extreme (1 year full version)
ASUS GlideX
- USB Wattage Watcher
TurboV Core
WinRAR (40 Days Free Trial)
Adobe Creative Cloud (Free Trial)
UEFI BIOS
AI Overclocking Guide
AI Cache Boost
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode
- A
FeaturesExtreme OC Kit
- FlexKey button
- LN2 Mode
- ReTry button
- Start button
Extreme Engine Digi+
- 10K Black metallic capacitors
- MicroFine alloy choke
ASUS Q-Design
- M.2 Q-Latch
- M.2 Q-Release
- M.2 Q-Slide
- PCIe Slot Q-Release
- Q-Antenna
- Q-Code
- Q-Connector
- Q-Dashboard
- Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green])
- Q-Slot
ASUS Thermal Solution
- Fan bracket
- 3D VC M.2 Heatsink
- M.2 heatsink backplate
- M.2 heatsink
- VRM heatsink design
- Metal backplate
ASUS EZ DIY
- Backplate
- BIOS FlashBack button
- Clear CMOS button
- ProCool II
- Pre-mo
Package ContentsCables
4 x SATA 6Gb/s cables
Additional Cooling Kit
1 x DDR5 fan holder
1 x ROG assistant fan (60mm)
1 x Thermal pad for M.2 22110
Miscellaneous
1 x ASUS WiFi Q-Antenna
1 x Q-connector
1 x M.2 Q-Latch package
3 x M.2 Q-Slide package
5 x M.2 rubber package
1 x ROG stickers
1 x ROG thank you card
1 x ROG Bottle Opener
Documentation
1 x Quick start guide
Shin-Etsu X-23-7868-2D
CPU

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Questions about this item

Will the 3D VC M.2 heatsink on the M.2_1 slot need any maintenance or replacement over time?

The 3D VC M.2 heatsink is a passive component with no moving parts and requires no scheduled maintenance or replacement under normal use.

What is the first limit reached when running the 20 110A power stages continuously at full load?

The VRM thermal capacity is the first limit; the massive heatsinks and L-shaped heatpipe are designed to absorb sustained current from the 20 110A stages without throttling.

How much noise and heat does the board produce when the AI Cooling II feature manages fans all day?

AI Cooling II automatically tunes fan curves to the lowest speeds that keep VRM and M.2 temperatures in check, minimising both acoustic output and case heat during extended operation.

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