Proxmox 7 Enabling unsupported SFP+ transceivers on the Intel X520-Dell R720

Proxmox 7.1-12
$ apt-get update
$ apt-get install ethtool
$ ethtool -e eno1 offset 0x58 length 1
Offset          Values
------          ------
0x0058:         fc

$ ethtool -E ens106f0 magic 0x10FB8086 offset 0x58 value 0xfd length 1

$ ethtool -e eno1 offset 0x58 length 1
Offset          Values
------          ------
0x0058:         fd

$ reboot

$ dmesg | grep ixgbe

DONE!