ASUS ROG CROSSHAIR X870E APEX

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ASUS ROG CROSSHAIR X870E APEX
The ROG CROSSHAIR X870E APEX is an ATX motherboard with an AMD X870E chipset, designed for AMD Ryzen desktop processors for the AMD AM5 socket and is ready for AI PC builds. It supports DDR5 memory with overclocking up to 9600MHz in two DIMM slots in Dual Channel mode, with a maximum capacity of 128GB and DIMM Fit, DIMM Fit Pro, and AEMP technologies. The board includes five M.2 slots, three of which are on-board 2280 slots supporting PCIe 5.0 x4, and two 22110 slots supporting PCIe 4.0 x4 via the ROG DIMM.2 card. The ROG Memory Fan Kit provides cooling for demanding overclocking. Connectivity includes WiFi 7, Realtek 5Gbps Ethernet, two USB4 Type-C ports, two front-panel USB 20Gb/s USB Type-C connectors, and integrated USB 4.0.
Key features of the ASUS ROG CROSSHAIR X870E APEX motherboard
- AMD X870E chipset with AM5 socket supports AMD Ryzen processors with advanced AI Cache Boost and Dynamic OC Switcher features
- Extreme 18+2+2 phase power system with 110A current capacity and two ProCool II connectors ensures stable power for overclocking
- Dual-channel DDR5 memory up to 128GB with AEMP support and 9600MHz overclocking thanks to enhanced signal routing and ROG Memory Fan Kit compatibility
- Full PCIe 5.0 support with three on-board M.2 PCIe 5.0 x4 slots, two PCIe 5.0 x16 slots, and an ROG DIMM.2 card
- Advanced networking with Wi-Fi 7 (up to 4.8× faster than Wi-Fi 6), two USB4 Type-C ports, and 5Gbps Ethernet with AI Networking II technology
- Cooling and overclocking with AI Cooling II, AI Overclocking, Core Flex, an asynchronous clock generator, and advanced BIOS tools including DIMM Fit Pro
Robust power and AI features
The motherboard uses an 18+2+2 power solution rated at 110A per phase with ProCool II power connectors. AI Cache Boost enhances the performance of large language models by optimising CPU cache and memory channels, delivering up to 29% higher local LLM performance. AI Overclocking enables faster and smarter tuning. AI Cooling II balances the thermal and acoustic properties of any PC build with a single click. AI Networking II combines technologies that optimise network performance, provide a reliable connection, and unlock the speed of WiFi 7. DIMM Fit is a BIOS feature that performs a precise analysis of individual memory modules to optimise performance and detect potential issues. DIMM Fit Pro is an advanced optional feature with more extensive customisation options. AEMP is a firmware feature for memory modules with PMIC limitations.
Advanced overclocking and cooling features
Dynamic OC Switcher boosts CPU performance and lets you set current and temperature thresholds to automatically switch between manual overclocking for demanding multi-threaded tasks and Precision Boost Overdrive for single-threaded tasks. Core Flex allows you to control clocks, power, and thermals in new ways. The board is equipped with an integrated clock generator that separates the processor's base clock from the memory, PCIe, and Infinity Fabric speed. PBO Enhancement increases current and voltage delivery to the CPU for higher performance. WiFi 7 offers a 320MHz wide 6GHz band, 4096 QAM with ASUS WiFi Q-Antenna. The ROG SupremeFX codec ensures high-quality audio output with Dolby Atmos technology.
Personalisation
The BIOS Q-Dashboard simplifies motherboard configuration with a visual display of hardware connections and corresponding BIOS settings. The M.2 Q-Release, M.2 Q-Slide, and M.2 Q-LATCH innovations make installing storage devices easier. PCIe Slot Q-Release Slim allows for easy removal of graphics cards. Q-Antenna enables simple connection of the WiFi antenna. The Q-LED diagnostic display and Q-CODE help with troubleshooting any problems. The Start button, BIOS FlashBack button, and Clear CMOS button simplify control. ASUS Aura Sync offers pre-set lighting effects that can be synchronised across compatible ROG graphics cards, monitors, mice, and keyboards.
Ports
Storage
- Number of SATA III: 4
- Number of M.2: 5
- M.2 Slot - 3× M.2 PCI-E NVMe Gen5
- M.2 Slot - 2× M.2 PCI-E NVMe Gen4
- Features: RAID 0, RAID 1, RAID 10, RAID 5
USB ports
- Internal USB 2.0: 4 (2 headers)
- Internal USB 3.2 Gen 1: 4 (2 headers)
- Internal USB-C 3.2 Gen 2x2: 2 (2 headers)
- Rear USB 3.2 Gen 1: 2
- Rear USB 3.2 Gen 2: 5
- Rear USB-C 3.2 Gen 2: 1
- Rear USB4 Gen 3x2: 2
Graphics
- Video outputs: 2× USB Type-C with DisplayPort support
Audio
- Number of channels: 7.1
- Codec: ALC4080
- Rear connectors: 2× 3.5mm Jack, Optical S/PDIF
- Internal connectors: 1× Front Panel Audio
Other
- Rear: BIOS FlashBack button, Clear CMOS button, RJ-45 (LAN) 5Gbps, 2× Wi-Fi antenna, PS/2
- Power: 1× 24-pin, 2× 8-pin CPU, 1× 8-pin PCIe
- Cooling: 1× CPU Fan, 1× CPU OPT Fan, 1× AIO Pump, 2× Chassis Fan, 2× Full Speed Fan, 1× W_PUMP+, 1× Extra Flow Fan
- Internal: 3× Addressable Gen2 RGB, 1× Thermal Sensor
Specifications
Socket and chipset
Format & functions
Memory
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Connectors
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Colour
ASUSTek COMPUTER INC. 1F.,No.15, Lide Rd., Beitou Dist., Taipei City 112 Tel: +886-2-2894-3447 Tel: +886-2-2890-7798 https://gr.asus.com/ProductSafety ASUS COMPUTER GmbH Harkortstrasse 21-23 40880 Ratingen Germany, Europe Email: [email protected]
ASUS COMPUTER GmbH, Harkortstrasse 21-23, 40880 Ratingen, Germany, Europe, [email protected]
ASUS is a symbol of the growth of Taiwan's economy. The firm's beginnings date back to April 2, 1989, when as a small manufacturer of motherboards began his work with a few employees. Today, Asus employs more than 12,500 employees worldwide.
ASUS products can be found in almost every category of the information technology marketplace. ASUS is focused on desktops, laptops, phones, optical drives and components. In the manufacture of motherboards, the company is now the dominant player with a staggering 40% market share.
This product is not an independently functional unit and may require professional installation.
Specifications can be changed without notice. Images are for illustrative purposes only.

