X4522 SFP56 Adapter Port Modes - X4522 SFP56 Adapter Port Modes - UG1739

AMD Solarflare X4 Series Ethernet Adapter User Guide (UG1739)

Document ID
UG1739
Release Date
2026-07-01
Revision
1.2 English

On the AMD Solarflare X4522 adapter, each SFP56 cage supports a single port at 1 GbE / 10 GbE / 25 GbE / 50 GbE.

X4522 Dual 50 GbE Ports

  • Uses both SFP56 ports.
  • Each port can operate at the following speeds and encodings:
    • 1 GbE NRZ (one lane at 1 Gb/s).
    • 10 GbE NRZ (one lane at 10 Gb/s).
    • 25 GbE NRZ (one lane at 25 Gb/s).
    • 50 GbE PAM4 (one lane at 50 Gb/s).
  • Two PCIe PFs are exposed to the OS.
Figure 1. X4522 – [1x1/10/25/50G][1x1/10/25/50G]