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Black ATX motherboard with hidden rear connectors, silver VRM heatsinks, and a Ryzen 9 9900X3D CPU installed

ASUS

ASUS ROG CROSSHAIR X870E HERO BTF AMD motherboard & Ryzen 9 9900X3D CPU combo

SKU CH-T11R-H7YG2

Pairs an AMD X870E motherboard with a 12-core Ryzen 9 9900X3D, offering DDR5 to 8600 MT/s, WiFi 7, 5Gb and 2.5Gb LAN, USB4, five M.2 slots and a 600 W graphics power connector

  • CPU socketAM5
  • ChipsetAMD X870E
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryUp to 8600+MT/s(OC)
  • Max supported RAM256 GB
  • Memory channelsDual Channel

Model ROG CROSSHAIR X870E HERO BTF

CPU +Ryzen 9 9900X3D

  • Ready for advanced AI workloads with X870E chipset and Ryzen 9000 series support
  • Hidden-connector design simplifies cable routing for a clean build
  • 18+2+2 power stages rated at 110A deliver stable current to the CPU
  • PCIe 5.0 x16 slot with Q-Release Slim enables fast GPU swaps
  • WiFi 7 and 5Gbps + 2.5Gbps LAN provide high-speed connectivity

Combo for AI-ready builds

This bundle pairs the ROG Crosshair X870E Hero BTF motherboard with the Ryzen 9 9900X3D processor. The CPU brings 12 cores, 120W TDP and a large 128MB L3 cache for heavy workloads. The board uses the AMD X870E chipset and AM5 socket to support current and future Ryzen 9000, 8000 and 7000 series chips. It targets enthusiasts who want high-end connectivity and overclocking headroom in one package.

Hidden-connector layout and power delivery

The board uses a hidden-connector design that routes key cables behind the motherboard tray for cleaner cable management. An 18+2+2 phase VRM with 110A power stages, ProCool II connectors, MicroFine alloy chokes and premium metallic capacitors feeds the CPU. A graphics card high-power slot can deliver up to 600 watts to compatible ASUS BTF graphics cards through the motherboard. Dual 5Gbps and 2.5Gbps Ethernet plus WiFi 7 and Bluetooth 5.4 handle networking.

PCIe 5.0 lanes and DDR5 limits

The primary PCIe 5.0 x16 slot runs at x16 or splits to x8/x4/x4 when M.2_2 is active, while M.2_3 drops to x4 in that scenario. Two M.2 slots support PCIe 5.0 x4 and a third runs at PCIe 4.0 x4, all accepting 2242, 2260 and 2280 form factors. Four DDR5 slots support up to 256GB at speeds up to 8600+ MT/s overclocked in dual-channel mode with ECC and unbuffered memory.

How it compares

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

Price $1,488.99
Pricier than about 93% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model nameROG CROSSHAIR X870E HERO BTF+R9 9900 × 3D
Processor
CPU socketAM5
ChipsetAMD X870E
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryUp to 8600+MT/s(OC)
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
SATA and RAID support0/1/5/10
Audio & video
Sound 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 a
Connectivity
Maximum network speed5 Gbit/s + 2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
PCIe 5.0 x16 slotsAMD Ryzen 9000 & 7000 Series Desktop Processors*
1 x PCIe 5.0 x16 slots with Q-Release Slim (supports x16 or x8/x4/x4 modes**)
**When M.2_2 are enabled, PCIEX16_1 will run x8, and M.2_3 will run x4.
AMD Ryzen 8700 & 8600 & 8400 Series Desktop Processors*
1 x PCIe 4.0 x16 slots with Q-Release Slim (Total bandwidth for x8)
AMD Ryzen 8500 & 8300 Series Desktop Processors*
1 x PCIe 4.0 x16 slot with Q-Release Slim (Total bandwidth for x4)
PCIe x4 slots1 x PCIe 4.0 x4 slot
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 x Graphics card high power slot
1 × 12 V-2 × 6 Auxiliary power connector
More details
BIOS256Mb Flash ROM, UEFI AMI BIOS

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Questions about this item

Does the board's PCIe 5.0 x16 slot keep full bandwidth when the second M.2 is populated?

When M.2_2 is enabled the PCIe 5.0 x16 slot drops to x8 and M.2_3 runs at x4, so full x16 bandwidth is only available with M.2_2 unused.

What case clearance does the hidden-connector layout and 18+2+2 110 A power stage array need?

The board is ATX with rear-mounted power and data connectors, so a standard ATX case with adequate rear cable-routing depth and room for a tall VRM heatsink is required.

How do you seat the CPU in the AM5 socket without bending pins, and what step is often missed?

Lift the retention lever, align the triangle on the Ryzen 9 9900X3D with the socket marker, place the chip gently without pressure, lower the frame, then lock the lever — skipping the alignment check is the common error.

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