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ATX motherboard with CPU installed, dark heatsinks, integrated I/O cover, ROG branding

ASUS

ASUS ROG CROSSHAIR X870E APEX AMD motherboard with Ryzen 7 9800X3D CPU

SKU CH-SWY5-76ZAV

AM5 motherboard and Ryzen 7 9800X3D CPU combo with 18+2+2 power stages, DDR5 up to 9600 MT/s, Wi-Fi 7, three PCIe 5.0 M.2 slots and ROG Memory Fan

  • CPU Socket TypeAM5
  • CPU TypeAMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desk
  • ChipsetAMD X870E
  • Number of Memory Slots2x288pin (DDR5)
  • Memory Standard2 x DIMM slots, max. 128GB, DDR5 Supports up to 8200+MT/s(OC
  • Maximum Memory Supported128GB

model ROG CROSSHAIR X870E APEX

+CPU +Ryzen 7 9800X3D

  • Supports Ryzen 9000, 8000 and 7000 series CPUs on AM5 socket
  • 18+2+2 power stages rated 110A and 80A for stable overclocking
  • DDR5 memory overclocking up to 9600+ MT/s with ROG Memory Fan kit
  • Wi-Fi 7 2x2 with 320MHz bandwidth for up to 6.5Gbps transfer rate
  • Five M.2 slots including three PCIe 5.0 and two PCIe 4.0 on ROG DIMM.2 card

AM5 platform for Ryzen 9000 series

This bundle pairs the ROG CROSSHAIR X870E APEX motherboard with an AMD Ryzen 7 9800X3D processor. The board uses the X870E chipset and an AM5 socket that supports Ryzen 9000, 8000 and 7000 series CPUs. It is built for enthusiasts who want a high-end desktop foundation with integrated AI-assisted tuning tools.

Two DDR5 slots rated to 9600 MT/s

The motherboard provides only two 288-pin DDR5 slots with a maximum capacity of 128 GB. Overclocked memory speeds reach 8200 MT/s with Ryzen 9000, 9600 MT/s with Ryzen 8000 and 8000 MT/s with Ryzen 7000 series processors. This two-slot layout is the single spec that determines whether the platform fits a given memory plan.

ROG DIMM.2 card and Memory Fan included

The package adds a ROG DIMM.2 card that supplies two additional PCIe 4.0 M.2 slots, plus a dedicated ROG Memory Fan kit that mounts above the DIMMs to cool high-frequency modules. Together they expand storage options and enable sustained memory overclocking without buying separate cooling hardware.

Highlights

  • Supports Ryzen 9000, 8000 and 7000 series CPUs on AM5 socket
  • 18+2+2 power stages rated 110A and 80A for stable overclocking
  • DDR5 memory overclocking up to 9600+ MT/s with ROG Memory Fan kit
  • Wi-Fi 7 2x2 with 320MHz bandwidth for up to 6.5Gbps transfer rate
  • Five M.2 slots including three PCIe 5.0 and two PCIe 4.0 on ROG DIMM.2 card

Specifications

BrandASUS
SeriesROG
ModelROG CROSSHAIR X870E APEX +(R7 9800X3D)
Part NumberROG CROSSHAIR X870E APEX +(R7 9800X3D)
CPU Socket TypeAM5
CPU TypeAMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors*
* Refer to https://www.asus.com/support/download-center/ for CPU support list.
ChipsetAMD X870E
Number of Memory Slots2x288pin (DDR5)
Memory Standard2 x DIMM slots, max. 128GB, DDR5
Supports up to
8200+MT/s(OC) with Ryzen™ 9000 Series Processors,
9600+MT/s(OC) with Ryzen™ 8000 Series Processors
8000+MT/s(OC) with Ryzen™ 7000 Series Processors,
ECC and Non-ECC, Un-buffered DIMM*
Dual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO™)
ASUS Enhanced Memory Profile (AEMP)
* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information sit
Maximum Memory Supported128GB
ECC SupportedNon-ECC
PCI Express 5.0 x16AMD Ryzen™ 9000 & 7000 Series Desktop Processors*
2 x PCIe 5.0 x16 slots with Q-Release Slim (supports x16 or x8/x8** or x8/x4/x4 modes***)
** When you use both PCIEX16_1 and PCIEX16_2, PCIEX16_1 and PCIEX16_2 will run x8.
***When M.2_3 are enabled, PCIEX16_1 will run x8, and PCIEX16_2 will run x4.
**** When M.2_2 and M.2_3 are enabled simultaneously, PCIEX16_2 will be disabled.
PCI Express 4.0 x16AMD Ryzen™ 8700 & 8600 & 8400 Series Desktop Processors*
2 x PCIe 4.0 x16 slots with Q-Release Slim (only supports PCIEx16_1 & total bandwidth for x8, PCIEx16_2 will be disabled)
AMD Ryzen™ 8500 & 8300 Series Desktop Processors*
2 x PCIe 4.0 x16 slots with Q-Release Slim (only supports PCIEx16_1 & total bandwidth for x4, PCIEx16_2 will be disabled)
AMD X870E Chipset
1 x PCIe 4.0 x4 slot
1 x PCIe 3.0 x1 slot
* Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/).
- To ensure compatibility of the device installed, please refer to https
Serial ATA (SATA)4 x SATA 6Gb/s
M.2Supports 5 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 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
DIMM.2_1 slot (Key M), type 2230/2242/2260/2280
SATA RAID0/1/5/10
Audio ChannelsROG 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
- Gold-plated audio jacks
- Rear optical S/PDIF out port
- Premium audio capacitors
- Audio cover
* A chassis with an HD audio module in the front panel is required to support 7.1 Su
Second LAN Chipset1 x Realtek 5Gb Ethernet
ASUS LANGuard
Max LAN Speed5Gbps
Wireless LANWi-Fi 7*
2x2 Wi-Fi 7 (802.11be)
Supports 2.4/5/6GHz frequency band**
Supports Wi-Fi 7 320MHz bandwidth, up to 6.5Gbps transfer rate.
Bluetooth® v5.4***
*Wi-Fi features may vary depending on the operating system
For Windows 11, Wi-Fi 7 will require 24H2 or later version for full functions, Windows 11 21H2/22H2/23H2 only support Wi-Fi 6E.
For Windows 10, please note that no driver is available, refer to the Wi-Fi chipset vendor's website for details.
** Wi-Fi 6GHz frequency band and bandwidth regulatory may vary between countries.
*** The Bluetooth® version may vary, please refer to th
BluetoothYes
Back I/O Ports2 x USB4® (40Gbps) ports (2 x USB Type-C®)
6 x USB 10Gbps ports (5 x Type-A + 1 x USB Type-C®)
2 x USB 5Gbps ports (2 x Type-A)
1 x Wi-Fi module
1 x Realtek 5Gb Ethernet port
1 x PS/2 keyboard/mouse combo port
2 x Gold-plated audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack™ button
1 x Clear CMOS button
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
2 x 4-pin Chassis Fan headers
2 x 4-pin Full Speed Fan headers
1 x W_PUMP+ header
1 x Extra Flow Fan header
Power Related
1 x 24-pin Main Power connector
2 x 8-pin +12V CPU Power connectors
1 x 8-pin PCIe Power connector
Storage Related
3 x M.2 slots (Key M)
4 x SATA 6Gb/s ports
USB
2 x USB 20Gbps connectors (support USB Type-C® )
2 x USB 5Gbps headers support 4 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Miscellaneous
1 x 80 Light Bar jumper
3
Form FactorATX
Dimensions (W x L)12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )
Windows 11Supported

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Questions about this item

What does the 18+2+2 power stage layout mean once the board is running with the 9800X3D?

The 18 Vcore stages rated at 110 A each, plus two additional 110 A stages and two 80 A stages, feed the CPU through ProCool II connectors, giving the 9800X3D a very high current ceiling for sustained boost and overclocking headroom.

What does the PCIe 5.0 x16 interface actually cap at with this CPU installed?

With the Ryzen 7 9800X3D the two top slots run at PCIe 5.0 x16 and can operate in x16, x8/x8 or x8/x4/x4 modes, so a single GPU gets the full 5.0 x16 bandwidth while two GPUs share it at x8 each.

What physical clearance does the ROG DIMM.2 card need inside the case?

The DIMM.2 card plugs vertically into a dedicated DIMM-slot connector on the motherboard, so it sits above the board like a memory module and only requires normal CPU-cooler clearance around the socket area.

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