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ATX motherboard with hidden rear connectors, black and silver heatsinks, bundled Ryzen 7 9700X CPU in clear plastic clamshell

ASUS

ASUS ROG CROSSHAIR X870E HERO BTF AMD motherboard & Ryzen 7 9700X CPU combo

SKU CH-CJ5V-RK3E4

AM5 motherboard and Ryzen 7 9700X CPU bundle with 18+2+2 power stages, DDR5 up to 8600 MT/s, WiFi 7, Bluetooth 5.4, five M.2 slots, PCIe 5.0, USB4 and 5 Gbps plus 2.5 Gbps LAN

  • 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 7 9700X

  • 8-core 16-thread Ryzen 9700X reaches 5.5 GHz boost for high frame rates
  • 18+2+2 power stages rated at 110 A each deliver stable overclocking headroom
  • DDR5 memory scales to 8600 MT/s across four slots with 256 GB maximum capacity
  • Hidden-connector BTF design routes cables behind the board for cleaner builds
  • WiFi 7 and Bluetooth 5.4 plus dual 5 Gb and 2.5 Gb Ethernet give fast wireless and wired links

Combo overview

This bundle pairs the ROG Crosshair X870E Hero BTF motherboard with a Ryzen 7 9700X processor. The board uses the AM5 socket and X870E chipset to support Ryzen 9000, 8000 and 7000 series CPUs. It targets enthusiasts who want a clean build with high-speed connectivity and AI-ready throughput.

Sustained load behaviour

An 18+2+2 phase design rated at 110 A per stage feeds the CPU through ProCool II connectors, alloy chokes and metallic capacitors. AI Overclocking, Core Flex and PBO Enhancement adapt voltage and frequency in real time while AI Cooling II manages thermals under prolonged workloads.

Interface limits

Four DDR5 slots accept up to 256 GB at 8600 MT/s in dual-channel mode with ECC support. Five M.2 sockets include two PCIe 5.0 x4 lanes; enabling M.2_2 drops the primary PCIe 5.0 x16 slot to x8. Rear I/O provides two USB4 40 Gbps ports, eight 10 Gbps USB ports, 5 Gbps and 2.5 Gbps Ethernet, WiFi 7 and Bluetooth 5.4.

How it compares

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

Price $864.99
Pricier than about 81% of the 1,906 comparable items (median $224.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameASUS
Model nameROG CROSSHAIR X870E HERO BTF+(R7 9700X)
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

Other versions of this model

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Questions about this item

How hot or noisy does the 18+2+2 power-stage VRM get when the Ryzen 7 9700X runs at 5.5 GHz all day?

The board uses 18 plus 2 plus 2 power stages rated at 110 A each with ProCool II connectors, MicroFine alloy chokes and premium metallic capacitors. AI Cooling II adjusts fan curves automatically to keep temperatures and noise low under sustained load.

Which DDR5 memory kit do I need to reach the 8600 MT/s overclocked speed on the four 288-pin slots?

The motherboard supports up to 256 GB of unbuffered DDR5 across four slots in dual-channel mode. AEMP profiles simplify setup, but hitting 8600 MT/s requires a kit validated for that frequency on the AM5 platform.

Will my existing PCIe 4.0 graphics card and SATA SSDs work without bandwidth loss on the PCIe 5.0 x16 and four SATA 6 Gb/s ports?

The PCIe 5.0 x16 slot with Q-Release Slim runs at x16 with a PCIe 4.0 card. Four SATA 6 Gb/s ports provide full 6 Gb/s each and support RAID 0, 1, 5 and 10 for legacy drives.

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