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ATX motherboard with black heatsinks and silver CPU socket visible

ASUS

ASUS ROG CROSSHAIR X870E HERO + Ryzen 9 9950X combo AMD motherboard

SKU CH-B4WF-MQ09X

Socket AM5 motherboard paired with a 16-core Ryzen 9 9950X CPU, 18+2+2 power stages, DDR5 up to 8600 MT/s, five M.2 slots, Wi-Fi 7 and dual 5 Gbps plus 2.5 Gbps Ethernet

  • 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 9950X

  • Ready for advanced AI workloads with high-speed connectivity
  • 16 cores and 32 threads deliver high multi-threaded performance
  • 18+2+2 power stages rated at 110A ensure stable overclocking
  • DDR5 memory support up to 8200+ MT/s with Ryzen 9000 series
  • Wi-Fi 7 and dual Ethernet up to 5Gbps plus 2.5Gbps provide fast networking

AM5 combo for AI workloads

This bundle pairs the ROG Crosshair X870E Hero motherboard with a Ryzen 9 9950X processor. The CPU delivers 16 cores and 32 threads based on the Zen 5 architecture with a 5.7 GHz maximum boost clock. The board provides an AM5 socket, 18 plus 2 plus 2 power stages rated at 110 amps each, and dual-channel DDR5 support up to 256 gigabytes. It targets users building advanced AI PCs who need strong compute density and extensive I/O.

Upgrade path from older AM5 CPUs

The motherboard supports Ryzen 7000, 8000 and 9000 series processors, so the jump is worth it when moving from a 7000 or 8000 series chip to the 9950X for the higher core count, larger 64 megabyte L3 cache and faster memory controller. The 18 plus 2 plus 2 power stage design with ProCool II connectors and MicroFine alloy chokes handles the increased current demand. AI Overclocking, AI Cooling II and PBO Enhancement simplify tuning for the new silicon.

PCIe 5.0 and USB4 connectivity limits

The platform provides two PCIe 5.0 x16 slots that operate at x16 or x8/x8 when both are populated, and three M.2 slots wired for PCIe 5.0 x4 plus two PCIe 4.0 M.2 slots. Rear I/O includes two USB4 ports at 40 gigabits per second and eight USB 10 gigabit ports. Networking uses Wi-Fi 7 (802.11be), Bluetooth 5.4, one 5 gigabit and one 2.5 gigabit Ethernet port. Four SATA 6 gigabit ports remain for legacy storage.

How it compares

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

Price $1,298.99
Pricier than about 92% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model nameROG CROSSHAIR X870E HERO +(R9 9950X)
Part numberROG CROSSHAIR X870E HERO +(R9 9950X)
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

What case clearance is needed for the 18+2+2 power stage VRM heatsinks on this ATX board?

The board uses the standard ATX form factor; ensure the case allows at least 226 mm depth and sufficient CPU cooler clearance for the VRM heatsink height.

Which BIOS step is often missed when enabling DDR5 speeds above 8200 MT/s with the included Ryzen 9 9950X?

After installing the CPU, update to the latest BIOS, enable EXPO or manually set the frequency, then save and reboot twice to train memory.

How often should the M.2 heatsink thermal pads be inspected on the three PCIe 5.0 and two PCIe 4.0 slots?

Check pads once a year or after heavy sustained workloads; replace if they show compression loss or dryness to keep drive temperatures in check.

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