macOS High Sierra has introduced User-Approved Kernel Extension Loading. For additional information on this update, please visit: https://developer.apple.com/library/archive/technotes/tn2459/_index.html

ATTO Ethernet Suite is a custom installer that loads the relevant macOS driver and ATTO 360 utility.  ATTO 360 software is an all-purpose tool for Ethernet network optimization featuring performance tuning, monitoring, and diagnostic tools that deliver the best performing and most efficient storage networks.