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ASUS

ASUS ROG STRIX X870E-H S MIKU + Ryzen 7 9700X AMD motherboard combo

SKU CH-AF8A-NZ89Q

An AMD AM5 motherboard and Ryzen 7 9700X combo with 16+2+1 80A power stages, dual PCIe 5.0 M.2 slots, Wi‑Fi 7 and dual USB4

  • ProcessorAMD Socket AM5 for AMD Ryzen 9000 & 8000 & 7000 Series Deskt
  • ChipsetAMD X870E
  • Form factorATX
  • CPU socketAM5
  • Memory slot count4 × 288pin (DDR5)
  • Supported memorySupports up to 8000+MT/s(OC)
  • Ready for Ryzen 9000, 8000 and 7000 series desktop processors with AM5 socket
  • 16+2+1 power solution rated for 80A per stage with dual ProCool II connectors
  • Massive heatsinks with integrated I/O cover and high-conductivity thermal pads for cooling
  • Two PCIe 5.0 M.2 slots and two PCIe 4.0 M.2 slots with substantial cooling solutions
  • Dual USB4 Type-C ports and USB 20Gbps Type-C front-panel connector for fast connectivity

AMD AM5 combo for gaming and AI workloads

The bundle pairs a ROG STRIX X870E-H S MIKU motherboard with a Ryzen 7 9700X processor. The 8-core, 16-thread CPU reaches a 5.5 GHz max boost clock on the Zen 5 architecture. The board supports Ryzen 9000, 8000 and 7000 series chips and provides the connectivity needed for demanding AI applications. Intelligent controls such as AI Advisor, AI Cache Boost, AI Cooling II and AI Networking II simplify setup and improve performance.

Upgrade path from older AM5 or AM4 platforms

Builders moving from a Ryzen 7000 or 8000 series CPU gain the higher boost frequency and architectural improvements of the 9700X. The motherboard adds dual USB4 Type-C ports, a USB 20Gbps Type-C front-panel connector and a rear USB 10Gbps Type-C port with PD 3.0 up to 30W. Two PCIe 5.0 M.2 slots and two PCIe 4.0 M.2 slots all include substantial cooling solutions. The jump is worth it when faster storage bandwidth and newer USB speeds are required.

Limits of the X870E chipset and AM5 socket

The platform tops out at DDR5 8000+ MT/s over four 288-pin slots with a 256GB maximum in dual-channel mode. PCIe 5.0 x16 graphics support is available only with Ryzen 9000 and 7000 series processors; Ryzen 8000 series drops to PCIe 4.0 x8 or x4 mode. Wireless LAN uses Wi-Fi 802.11 be and wired LAN reaches 5Gbps. Audio is handled by a Realtek ALC1220P codec driving 7.1 channels with an internal amplifier and impedance sensing.

How it compares

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

Price $823.99
Pricier than about 79% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Product lineROG STRIX
Model nameROG STRIX X870E-H S MIKU+R7 9700X
Part numberROG STRIX X870E-H S MIKU+R7 9700X
Processor
ProcessorAMD Socket AM5 for AMD Ryzen 9000 & 8000 & 7000 Series Desktop Processors
CPU socketAM5
ChipsetAMD X870E
Memory
Memory slot count4 × 288pin (DDR5)
Supported memorySupports up to 8000+MT/s(OC)
Max supported RAM256 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsSupports 4 x M.2 slots and 4 x SATA 6Gb/s ports
AMD 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 2280/22110 (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/x2 mode)
M.2_2 slot (Key M), type 2280/22110 (Not supports)**
AMD X870E Chipset
M.2_3 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
M.2_4 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
* M.2_2 shares bandwidth with PCIEX16(G5). When M.2_2 is occu
SATA and RAID supportAMD RAIDXpert2 Technology*
Ryzen 9000 Series Processors: RAID 0/1/5/10
Ryzen 8000 Series Processors: RAID 0/1
Ryzen 7000 Series Processors: RAID 0/1/10
Audio & video
Audio chipRealtek ALC1220P 7.1 Surround Sound High Definition Audio CODEC*
- Impedance sense for front and rear headphone outputs
- Internal audio Amplifier to enhance the highest quality sound for headphone and speakers
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- High quality 120 dB SNR stereo playback output and 113 dB SNR recording input (Line-in)
- Supports up to 32-Bit/192 kHz playback*
Audio Features
- SupremeFX Shielding Technology
- Savitech SV3H712 AMP
- Rear optical S/PDIF out port
- Premium audio capacitors
- Audio cover
Sound channels7.1 Channels
Connectivity
Maximum network speed5 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 slot (supports x16 mode)
AMD Ryzen 8000 Series Desktop Processors*
1 x PCIe 4.0 x16 slot (supports x8/x4 mode)**
PCIe 4.0 x16 slots1 x PCIe 4.0 x16 slot (supports x4 mode)
Onboard USB headers1 x USB 20 Gbit/s connector (supports USB Type-C)
1 x USB 5 Gbit/s header supports 2 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
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 supportSupported
More details
BIOS256 Mb Flash ROM, UEFI AMI BIOS

Other versions of this model

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Questions about this item

What case clearance and power connectors does the ROG STRIX X870E-H S MIKU need?

The board is ATX with massive heatsinks and an integrated I/O cover, so a standard ATX case with room for tall CPU coolers is required. It uses dual ProCool II 8-pin connectors fed by the 16+2+1 80A power stages.

Which BIOS step is often missed when installing the Ryzen 7 9700X on this X870E board?

After seating the AM5 processor and DDR5 modules, enable EXPO or AEMP in BIOS so the memory runs at the rated 8000+ MT/s; the board defaults to JEDEC speeds otherwise.

What cooling maintenance will the M.2 heatsinks and VRM area need over time?

The four M.2 slots (two PCIe 5.0, two PCIe 4.0) and the VRM heatsinks rely on passive thermal pads; clean dust from the fins annually and replace pads if temperatures rise.

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