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ATX motherboard with dark heatsinks and installed CPU cooler

ASUS

ASUS ROG CROSSHAIR X870E HERO + R9 9900X AMD Motherboard Combo

SKU CH-AV65-A002D

A combo pairing an AM5 motherboard with a 12-core, 24-thread Ryzen 9 9900X CPU, offering DDR5 support to 8600 MT/s, three PCIe 5.0 M.2 slots, Wi-Fi 7, Bluetooth 5.4.

  • CPU socketAM5
  • ChipsetAMD X870E
  • Form factorATX
  • Memory slot count4 × 288pin (DDR5)
  • Max supported RAM256 GB
  • Memory channelsDual Channel

Model ROG CROSSHAIR X870E HERO

CPU +Ryzen 9 9900X

  • Ready for advanced AI workloads with robust power and connectivity
  • 12-core Ryzen 9 9900X processor reaches 5.6 GHz max boost for heavy tasks
  • 18+2+2 power stages rated at 110 A deliver stable overclocking headroom
  • DDR5 memory scales to 8200 MT/s on four slots up to 256 GB total
  • Wi-Fi 7 plus 5 Gbps and 2.5 Gbps Ethernet ensure fast wired and wireless links

AMD AM5 Platform Ready

This bundle pairs the ROG CROSSHAIR X870E HERO motherboard with the Ryzen 9 9900X processor. The board uses the X870E chipset and AM5 socket to support Ryzen 9000, 8000 and 7000 series CPUs. It delivers an 18+2+2 power stage design rated at 110A per stage with ProCool II connectors for stable delivery.

Enthusiasts Seeking AI Compute Headroom

Builders who want 12 cores and 24 threads at 5.6 GHz max boost with 64 MB L3 cache for local AI workloads will benefit. The platform supports up to 256 GB of DDR5 across four slots at speeds up to 8200+ MT/s with Ryzen 9000 series. Users needing only mainstream core counts or lower memory capacity should consider simpler configurations.

Five M.2 Slots With Dedicated Cooling

Three PCIe 5.0 and two PCIe 4.0 M.2 slots accept 2242, 2260 and 2280 drives, each fitted with substantial heatsinks. Networking includes Wi-Fi 7 with Q-Antenna, Bluetooth 5.4, Intel 2.5 Gb and Realtek 5 Gb Ethernet. Rear I/O provides two USB4 40 Gbps Type-C ports, eight USB 10 Gbps ports and HDMI. SupremeFX 7.1 audio uses the ALC4082 codec with impedance sensing.

How it compares

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

Price $1,099.99
Pricier than about 90% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model nameROG CROSSHAIR X870E HERO +(R9 9900X)
Part numberROG CROSSHAIR X870E HERO +(R9 9900X)
Processor
CPU socketAM5
ChipsetAMD X870E
Memory
Memory slot count4 × 288pin (DDR5)
Max supported RAM256 GB
Memory channelsDual Channel
ECC supportYes
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsAMD 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
M.2_4 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
M.2_5 slot (Key M), type 2280 (su
Audio & video
Audio chipROG 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
* The LINE OUT port on the rear panel does not support spatial audio. If you wish to use spatial a
Sound channels7.1 Channels
Connectivity
Maximum network speed5 Gbit/s + 2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
Onboard USB headers2 x USB 20 Gbit/s connectors (support USB Type-C)
2 x USB 5 Gbit/s headers support 4 additional USB 5 Gbit/s ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Power
Power connectors1 × 24-pin Main Power connector
2 × 8-pin +12 V CPU Power connector
1 × 8-pin PCIe Power connector
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 supportSupported
More details
BIOS256Mb Flash ROM, UEFI AMI BIOS

Other versions of this model

5 more in the same range

Questions about this item

Will the Ryzen 9 9900X fit in my existing AM5 cooler?

The CPU uses the AM5 socket, so any cooler rated for AM5 will mount correctly.

Does the board come with the 12 V 2x8 pin and 24 pin power cables?

Those cables are supplied with your power supply, not the motherboard.

How many PCIe 5.0 M.2 drives can I install without reducing the graphics slot to x8?

Two PCIe 5.0 M.2 slots are wired to the CPU; using both keeps the primary x16 slot at full speed.

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