ASUS ROG Crosshair X870E Extreme M.2 Slots Specs

The ASUS ROG Crosshair X870E Extreme motherboard redefines PCIe 5.0 storage with five M.2 slots, including three Gen5 x4 for blistering 14GB/s speeds. Tailored for AMD Ryzen 9000 creators and gamers, it features SupremeFX audio, dual USB4, and ROG-exclusive overclocking. This overview details M.2 specs, configs, and performance benchmarks.

With DIMM.2 expansion and heatsinks across all slots, thermal throttling is history. Ideal for NVMe RAID arrays in 4K editing or ray-traced gaming.

M.2 Slot Breakdown

Primary: PCIe 5.0 x4 from CPU (128Gbps).

  • Slot 1: Gen5 x4, CPU-direct
  • Slot 2: Gen5 x4 shared GPU
  • Slot 3: Gen5 x4 chipset
  • Slots 4-5: Gen4 x4

Cooling and Heatsinks

Armored shrouds with thermal pads for 70C max under load.

  • ARGB lighting sync
  • Backplate dissipation
  • RAID 0/1/10 support

Performance Benchmarks

Sequential reads hit 14,000MB/s on Samsung 990 Pro.

  • CrystalDiskMark verified
  • Gaming load times halved
  • Content creation 2x faster

Compatibility Notes

Full Ryzen 9000/8000/7000 support; BIOS Q-Flash.

  • No GPU lane conflicts in SFF
  • WiFi 7 integrated
  • 5Gbps LAN dual

Build Tips and Upgrades

Pair with ROG Strix cases for airflow.

  • DIMM.2 for 4x extra slots
  • Q-Code diagnostics
  • Aura Sync ecosystem

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