macOS driver for Ethernet devices. Download this
file to your Mac and double click it to launch the driver installation
Specific configurations may cause the ATTO adapter to become non-responsive but still appear available within the macOS.
Please review the latest Technical Bulletin for current troubleshooting information regarding this scenario.
macOS High Sierra has introduced User-Approved Kernel Extension Loading. For
additional information on this update, please visit:
Archived 10/25/40/50/100GbE FastFrame Ethernet SmartNICs Downloads