New in TrueNAS Core, PCI passthrough of devices on the host to a VM is supported. Devices will need to be dedicated to the VM they are being passed through to. GPU passthrough is a little chancy, I had no success with passing through to Windows, was successful passing through to Ubuntu LTS. Someone else was also successful passing through to Linux, see video link below. USB passthrough to Windows 10 VM worked great. FreeBSD wiki description of passthrough: GPU passthrough to Linux VM:
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