Installing new ATTO H12F0 in TrueNAS

[dockbox]

I have an ATTO H12F0 HBA (ATTO H12FO Product Page ) from another project and I want to install it to have 12gb/s SAS expansion capability in my NAS. Drivers are available, but I am not sure how to install them in TrueNAS. the card is recognized but is showing no driver. I researched this issue and all I could find was a 5 year old thread that the OP ended up using an LSI card. Thank you in advance for your help.

My system:
TrueNAS-12.0-U5
MB: Super Micro X11SCL-F
CPU: Xeon E-2136
RAM: 128 GB DDR4 ECC
HBA1: LSI 9207-8i
HHD: (4) 4tb WD Gold
RAID: 10 Stripe & Mirror