Areca 24/4 Internal/External Port Pcie 3.0 12 Gb/s SAS/SATA Raid Controller 2Gb Cache - Manual (Page 118)

DRIVER INSTALLATION
118
(1-6). Choose “ Reduced Security ” and enable “Allow user
management of kernel extensions from identified devel -
opers”.
(1-7). Click “ OK” and confirm the action by entering your ad -
ministrator credentials.
(1-8). Restart your Mac for the changes to take effect.