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ATX motherboard in white and silver with large heatsinks and rear I/O shield

ASUS

ASUS ROG STRIX X870-A GAMING WIFI AMD motherboard 16+2+2 power stages

SKU CH-709V-KXJZW

ATX AM5 board with 16+2+2 90A power stages, two PCIe 5.0 M.2 slots, dual USB4, WiFi 7 and 2.5Gbps LAN for Ryzen 7000, 8000 and 9000 CPUs

  • CPU socketAM5
  • ChipsetAMD X870
  • Form factorATX
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR5 4400
  • Max supported RAM192 GB
  • Stable power for multi-core CPUs with 16+2+2 90A stages and dual ProCool II connectors
  • Four M.2 slots including two PCIe 5.0 x4 and two PCIe 4.0 with heatsinks
  • Dual USB4 Type-C plus USB 20Gbps front header and USB 10Gbps PD 3.0 up to 30W
  • AI Overclocking, AI Cooling II, AI Networking and AEMP simplify tuning and memory setup
  • 5Gbps LAN and WiFi 7 with ROG SupremeFX 7.1 audio for fast networking and clear sound

AM5 platform for Ryzen 7000 8000 9000

This ATX motherboard uses the AMD X870 chipset and an AM5 socket to support Ryzen 7000 8000 and 9000 series desktop processors. Four 288 pin DDR5 slots accept up to 192GB of un buffered memory in dual channel mode with ECC support. The board targets enthusiasts who want AI ready compute and high speed storage in a standard form factor.

16 plus 2 plus 2 power stages

A 16 plus 2 plus 2 power solution rated at 90A per stage uses dual ProCool II connectors with alloy chokes and durable capacitors. Two PCIe 5.0 M.2 slots and two PCIe 4.0 M.2 slots support 2242 2260 2280 and 22110 form factors each with substantial cooling. The primary PCIe 5.0 x16 SafeSlot and 2.5Gbps LAN handle graphics and networking while dual USB4 Type C ports and a USB 20Gbps front panel connector provide high bandwidth I O.

AI overclocking cooling networking and AEMP

ASUS exclusive AI Overclocking AI Cooling II AI Networking and AEMP simplify setup and improve performance without manual tuning. ROG Strix technologies include Dynamic OC Switcher Core Flex Asynchronous Clock and PBO Enhancement for advanced frequency control. The ROG SupremeFX 7.1 audio codec ALC4080 adds impedance sensing jack detection and multi streaming while USB Wattage Watcher monitors the USB 10Gbps port with PD 3.0 up to 30W.

How it compares

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

Price $197.99
Typical for this category: the median of 1,906 items is $224.49.

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Specifications

Product
Brand nameASUS
Model nameROG STRIX X870-A GAMING WIFI
Part number90MB1IF0-M0AAY0
Processor
CPU socketAM5
ChipsetAMD X870
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR5 4400
Max supported RAM192 GB
Memory channelsDual Channel
ECC supportYes
BufferingUn-buffered
Storage
SATA ports2 x SATA 6Gb/s
SATA and RAID support* AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/5/10 and SATA RAID 0/1/5/10. RAID 5 Function is only supported by AMD Ryzen™ 9000 series CPU.
Audio & video
Audio chipROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080*
- 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
- Savitech SV3H712 AMP
- Rear optical S/PDIF out port
- Premium audio capacitors
- Audio cover
* The LINE OUT port on the rear panel does not support spatial audio. If you wish to use spatial audio, make s
Sound channels7.1 Channels
Connectivity
Maximum network speed2.5 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 slot (supports x16 mode)
PCIe 4.0 x16 slotsAMD Ryzen 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x8/x4 mode)
Onboard USB headers1 x USB 20 Gbit/s connector (supports 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
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

Questions about this item

What PCIe generation does the primary x16 slot use, and what lane width does it run at?

The primary slot is PCIe 5.0 x16 and runs at full x16 mode with Ryzen 9000 or 7000 series processors.

What case form factor and CPU cooler clearance does the board require?

The board uses the ATX form factor and fits standard ATX cases; the 16+2+2 power stage heatsinks sit close to the socket, so verify your cooler’s keep-out zone against the VRM heatsink height.

How is the Q-Release Slim mechanism used when installing a graphics card, and what mistake should be avoided?

Press the release latch on the PCIe 5.0 x16 SafeSlot before inserting the card, then push the card straight down until the latch clicks; do not force the card without depressing the latch first.

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