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ASUS ROG Crosshair X870E Dark Hero ATX motherboard, 20+2+2 power stages, DDR5 slots, PCIe 5.0, five M.2 slots, 3D VC M.2 heatsink, USB4, AI Cache Boost, PCIe Slot Q-Release, AIO Q-Connector
- Ready for Advanced AI PC: Designed for the future of AI computing, with the power and connectivity needed for demanding AI applications
- AMD AM5 Socket: Ready for AMD Ryzen 9000 & 8000 & 7000 Series Desktop Processors
- Intelligent Control: ASUS-exclusive AI Cache Boost, ASUS AI Advisor, AI Overclocking, AI Cooling II, AI Networking II, and AEMP to simplify setup and improve performance
- ROG Overclocking Technologies: Dynamic OC Switcher, Core Flex, Asynchronous Clock and PBO Enhancement
- Robust Power Solution: 20(110A)+2(110A)+2 power stages with ProCool II power connectors, MicroFine alloy chokes and premium metallic capacitors
- Optimized Thermal Design: 3D VC M.2 heatsink for one PCIe 5.0 M.2 slot, Massive heatsinks integrated with the I/O cover, joined by an L-shaped heatpipe and connected to the power stages with high-conductivity thermal pads
- Latest M.2 Support: Two onboard PCIe 5.0 M.2 slots and three PCIe 4.0 M.2 slots, all with substantial cooling solutions
- Abundant Connectivity: Dual USB4 Type-C ports, two USB 20Gbps Type-C front-panel connectors (one with Quick Charge 4+ up to 60W and USB Wattage Watcher), nine additional USB 10Gbps ports, two PCIe 5.0 x16 SafeSlots, HDMI port
- High-Performance Networking: On-board Wi-Fi 7 (802.11be) with ASUS WiFi Q-Antenna, Realtek 10Gb Ethernet and Realtek 5Gb Ethernet
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Overview
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ROG Crosshair X870E DARK HERO
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 3 years
- Limited Warranty period (labor): 3 years
- Read full details
Return Policies
- Return for refund until: January 31, 2026
- Return for replacement until: January 31, 2026
- This item is covered by Newegg.com's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2025 and December 31, 2025 you will have until January 31, 2026 to return your product.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-510-739-3777
- Support Website
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The ASUS ROG Crosshair X870E Dark Hero is a premium ATX motherboard for AM5 Ryzen 7000, 8000, and 9000 desktop processors, suited to enthusiasts building high-performance systems with extensive tuning, cooling, and expansion options.
Recommended For
- High-end Ryzen gamers building an AM5 desktop who want a premium black motherboard, PCIe 5.0 graphics support, fast SSD options, Wi-Fi 7, and extensive rear USB connectivity.
- Content creators and workstation builders who need several onboard M.2 drives, fast external USB4 storage, and high-speed wired networking for large files and connected peripherals.
- PC enthusiasts who regularly tune Ryzen performance and memory settings and value onboard controls, diagnostic features, BIOS FlashBack, and detailed UEFI options.
- Advanced creators exploring dual-GPU rendering or local AI workloads who want an AM5 board positioned for multiple accelerators and high-speed expansion.
- Builders planning a full-size ATX system with a coordinated all-black look and compatible ASUS AIO hardware that can use the board’s AIO Q-Connector.
Real-World Use Scenarios
- Building a high-end AM5 gaming PC: pair a Ryzen 7000 or 9000 processor with a graphics card and fast NVMe storage; the board provides PCIe 5.0 support and room to add more drives as a game library grows.
- Editing video or working with large project files: use multiple onboard M.2 drives for operating system, active projects, and storage, and connect compatible high-speed external drives through USB4; actual transfer speeds depend on the drives and devices used.
- Running GPU-based rendering or AI workloads: users whose software benefits from two graphics cards can build a dual-GPU setup, with the two main slots operating at x8/x8 when both are populated; workload support and performance depend on the GPUs and software.
- Moving large files between a workstation and fast local storage: connect compatible 10GbE or 5GbE wired networks, or use Wi-Fi 7 where the router and environment support it; network throughput depends on the rest of the network.
- Tuning a Ryzen build: enthusiasts can adjust memory profiles, cooling, and CPU settings in the UEFI, then use onboard diagnostics and BIOS FlashBack to help with setup or recovery; stable results depend on the specific CPU, memory kit, and settings.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | AM5 desktop builds using Ryzen 7000, 8000, or 9000 Series processors, with support for DDR5 memory, multiple M.2 drives, high-speed USB, and wired and wireless networking |
| Processor And Platform | AMD AM5 socket with X870E chipset; supports Ryzen 7000, 8000, and 9000 Series desktop processors |
| Memory Configuration | Four DDR5 DIMM slots, up to 256 GB in dual-channel, with AMD EXPO and support for ECC unbuffered memory; maximum overclocked memory rates vary by processor series: up to 8600+/8200+ MT/s with Ryzen 9000, 9600+/9200+ MT/s with Ryzen 8000, and 8000+/8000+ MT/s with Ryzen 7000 |
| Expansion And Storage | Two PCIe x16 slots support PCIe 5.0 with Ryzen 9000 and 7000 processors, operating at x16 or x8/x8; supported PCIe generation and bandwidth vary with processor. Five M.2 slots support up to two PCIe 5.0 x4 drives and three PCIe 4.0 drives, with slot availability and bandwidth varying by processor; the fifth slot supports PCIe 4.0 x2. The M.2_2 slot shares PCIe 5.0 bandwidth with the rear USB4 ports. Four SATA 6Gb/s ports support AMD RAID 0/1/5/10 |
| High-Speed I/O | Rear I/O includes two USB4 40Gbps Type-C ports and nine USB 10Gbps ports (six Type-A and three Type-C); two front-panel USB 20Gbps Type-C connectors are provided, with one supporting Quick Charge 4+ up to 60W when the PCIe power connector is installed. Also includes one HDMI port |
| Wired And Wireless Networking | Realtek 10Gb Ethernet and 5Gb Ethernet, Wi-Fi 7 (802.11be), and Bluetooth 5.4 |
| Audio Setup | ROG SupremeFX 7.1-channel HD audio with ALC4082 codec and ESS ES9219 QUAD DAC; includes optical S/PDIF, gold-plated audio jacks, and front-panel playback support up to 32-bit/384 kHz |
| Power And Thermal Design | Extreme Engine Digi+ components include 10K black metallic capacitors and MicroFine alloy chokes; ProCool II power connectors, VRM heatsinks, a 3D VC M.2 heatsink, M.2 heatsinks and backplate, and a metal backplate are included |
| Cooling And Expansion Headers | Fan and cooling connections include CPU, CPU OPT, AIO pump, chassis fan, and W_PUMP+ headers; also includes an AIO Q-Connector and thermal sensor header |
| Firmware And Board Utilities | 64 MB UEFI AMI BIOS with BIOS FlashBack and Clear CMOS controls; ASUS utilities include AI Cache Boost, AI Overclocking, AI Cooling II, and AI Networking II |
| Form Factor And Dimensions | ATX motherboard measuring 12.0 × 9.6 inches |
| Model Identifiers | ASUS ROG Crosshair X870E Dark Hero |