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White ATX motherboard with teal accents, large heatsinks, Hatsune Miku graphics, and a Ryzen 9 9900X3D CPU in socket

ASUS

ASUS ROG STRIX X870E-H S MIKU motherboard & AMD Ryzen 9 9900X3D CPU Combo GAMING WIFI7

SKU CH-Y70N-E2SB5

An AMD AM5 motherboard and Ryzen 9 9900X3D processor bundle with DDR5 support, PCIe 5.0 M.2 slots, dual USB4 and Wi‑Fi 7 connectivity

  • CPU Socket TypeAM5
  • CPU TypeAMD Socket AM5 for AMD Ryzen 9000 & 8000 & 7000 Series Deskt
  • ChipsetAMD X870E
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardSupports up to 8000+MT/s(OC)
  • Maximum Memory Supported256GB

model ROG STRIX X870E-H S MIKU

+CPU + Ryzen 9 9900X3D

  • Ready for AMD Ryzen 9000, 8000 and 7000 series desktop processors
  • AI Advisor, AI Cache Boost, AI Cooling II, AI Networking II and AEMP simplify setup and improve performance
  • 16+2+1 power solution rated for 80A per stage with dual ProCool II power connectors supports multi-core processors
  • Massive heatsinks with integrated I/O cover and high-conductivity thermal pads provide optimized thermal design
  • Two onboard PCIe 5.0 M.2 slots and two PCIe 4.0 M.2 slots, all with substantial cooling solutions

Combo for AM5 builders

This bundle pairs a ROG STRIX X870E-H S MIKU motherboard with an AMD Ryzen 9 9900X3D processor. The board uses the AMD X870E chipset and an AM5 socket ready for Ryzen 9000, 8000 and 7000 series CPUs. It targets enthusiasts who want a matched platform for gaming and demanding AI workloads without selecting parts separately.

AI software and connectivity upgrades

ASUS AI Advisor, AI Cache Boost, AI Cooling II, AI Networking II and AEMP automate tuning, cooling and network priority. Dual USB4 Type-C ports, a USB 20Gbps front-panel connector and a rear USB 10Gbps Type-C with PD 3.0 up to 30W expand peripheral options. The 16+2+1 power stage design rated for 80A per stage supports the 120W CPU under sustained multi-core loads.

PCIe 5.0 and Wi-Fi 7 limits

Two onboard M.2 slots run at PCIe 5.0 x4 while two more run at PCIe 4.0 x4; the primary graphics slot operates at PCIe 5.0 x16 with Ryzen 9000 and 7000 processors but drops to PCIe 4.0 x8 or x4 with Ryzen 8000 chips. Wireless LAN uses Wi-Fi 7 (802.11 be) and wired LAN reaches 5Gbps, so throughput depends on router and cable quality.

Highlights

  • Ready for AMD Ryzen 9000, 8000 and 7000 series desktop processors
  • AI Advisor, AI Cache Boost, AI Cooling II, AI Networking II and AEMP simplify setup and improve performance
  • 16+2+1 power solution rated for 80A per stage with dual ProCool II power connectors supports multi-core processors
  • Massive heatsinks with integrated I/O cover and high-conductivity thermal pads provide optimized thermal design
  • Two onboard PCIe 5.0 M.2 slots and two PCIe 4.0 M.2 slots, all with substantial cooling solutions

Specifications

BrandASUS
SeriesROG STRIX
ModelROG STRIX X870E-H S MIKU+R9 9900X3D
Part NumberROG STRIX X870E-H S MIKU+R9 9900X3D
CPU Socket TypeAM5
CPU TypeAMD Socket AM5 for AMD Ryzen 9000 & 8000 & 7000 Series Desktop Processors
ChipsetAMD X870E
Number of Memory Slots4x288pin (DDR5)
Memory StandardSupports up to 8000+MT/s(OC)
Maximum Memory Supported256GB
Channel SupportedDual Channel
PCI Express 5.0 x16AMD 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)**
PCI Express 4.0 x161 x PCIe 4.0 x16 slot (supports x4 mode)
Serial ATA (SATA)4 x SATA 6Gb/s
M.2Supports 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 RAIDAMD 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 ChipsetRealtek 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
Audio Channels7.1 Channels
Max LAN Speed5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Back I/O Ports2 x USB4 (40Gbps) ports(2 x USB Type-C)
4 x USB 10Gbps ports (3 x Type-A + 1 x USB Type-C with up to 30W PD/PPS Fast-charge)
6 x USB 5Gbps ports (6 x Type-A)
2 x USB 2.0 ports (2 x Type-A)
1 x HDMI port
1 x Wi-Fi module
1 x Realtek 5Gb Ethernet
2 x Audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack button
1 x Clear CMOS button
Onboard USB1 x USB 20Gbps connector (supports USB Type-C)
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Other ConnectorsFan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
5 x 4-pin Chassis Fan headers
Miscellaneous
3 x Addressable RGB Gen 2 headers
1 x Chassis Intrusion header
1 x CPU Over voltage jumper
1 x Front Panel Audio header (F_AUDIO)
1 x Start button
1 x 10-1 pin Front Panel System header
1 x Thermal Sensor header
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24-pin Main Power connector
2 x 8-pin +12V CPU Power connector
BIOS Feature256 Mb Flash ROM, UEFI AMI BIOS
SoftwareROG Exclusive Software
- ROG CPU-Z
- Dolby Atmos
ASUS Exclusive Software
Armoury Crate
- Aura Creator
- Aura Sync
- Fan Xpert 4 (with AI Cooling II)
- GameFirst
ASUS AI Advisor
ASUS DriverHub
- AIDA64 Extreme (60 days free trial)
- HWiNFO
ASUS GlideX
USB Wattage Watcher
TurboV Core
Adobe Creative Cloud (Free Trial)
Norton 360 for Gamers (60 Days Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
AI Overclocking Guide
AI Cache Boost
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode
- ASUS MyHotkey
FlexKey
Windows 11Supported
FeaturesExtreme Engine Digi+
- 5K Black metallic capacitors
ASUS Q-Design
- M.2 Q-Latch
- M.2 Q-Release
- PCIe Slot Q-Release
- Q-Antenna
- Q-Dashboard
- Q-DIMM
- Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green])
- Q-Slot
ASUS Thermal Solution
- M.2 heatsink
- VRM heatsink design
ASUS EZ DIY
- BIOS FlashBack button
- BIOS FlashBack LED
- Clear CMOS button
- ProCool II
- Pre-mounted I/O shield
- SafeSlot
- SafeDIMM
Aura Sync
-Addressable RGB Gen 2 headers

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the 120W Ryzen 9 9900X3D need a cooler upgrade later?

The CPU has a 120W TDP; the motherboard's 16+2+1 power stages rated for 80A each and massive heatsinks with high-conductivity thermal pads are designed to handle multi-core loads, so a quality air or liquid cooler matched to 120W is sufficient.

What thermal limit appears first during all-day loads on the PCIe 5.0 M.2 slots?

Each of the two PCIe 5.0 M.2 slots includes substantial cooling solutions; sustained heavy I/O will hit the drive's own thermal throttle point before the motherboard heatsink saturates.

How loud and hot does the VRM area get when the 12-core CPU runs at 120W continuously?

The 16+2+1 phase design at 80A per stage with dual ProCool II connectors and large integrated heatsinks keeps VRM temperatures low, allowing AI Cooling II to run fans at lower RPM for quieter operation.

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