ASUS Pro WS WRX90E-SAGE SE PCIe Slots Count

The ASUS Pro WS WRX90E-SAGE SE motherboard, optimized for workstation Threadripper PRO in 2026, features an impressive PCIe slot configuration for multi-GPU and storage setups. This list details every slot's specs, lanes, and compatibility, helping builders maximize bandwidth for AI, rendering, and server tasks.

Released with AMD WRX90 chipset, it supports up to 192 PCIe 5.0 lanes total. Perfect for pros needing expansion without bottlenecks.

PCIe x16 Slots (Graphics)

Primary slots for GPUs.
  • 7x PCIe 5.0 x16: Full 16 lanes each, bifurcation to x8/x8.
  • Supports 4-way AMD CrossFire and NVLink.

PCIe x8 Slots (Expansion)

For NICs and RAID.
  • 2x PCIe 5.0 x8: 8 lanes dedicated, hot-plug capable.

PCIe x4 and M.2 Linked Slots

Storage-focused.
  • 4x PCIe 4.0 x4: For high-speed SSDs via adapters.
  • Integrated with 8x M.2 slots.

Total PCIe Lane Allocation

Full breakdown.
  • 128 Gen5 lanes from CPU.
  • 64 Gen4 from chipset.
  • Total: 192 lanes, no sharing on primary x16s.

Compatibility Notes 2026

Key pairings.
  • RTX 5090: 4x in x16 slots.
  • EPYC storage: Full OCuLink support.
  • No lane reduction in multi-GPU.

Physical Layout

Board positioning.
  • Top: 4x x16 vertical.
  • Bottom: 3x x16 + 2x x8 horizontal.
  • All reinforced with metal braces.

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