So I have a CalDigit FASTA-6GU3 USB and ESATA PCI Card for my MacPro to add USB 3 to my old MacPro 4,1. And it worked great for a long time, but not since Yosemite came out.
I checked there web site about it, and it says this:
It does not support OS 10.10, so I wrote to CalDigit, and got this response:
Dear Jonah,
We regret to inform you that the mac OSX platform is no longer supporting the chipset used on the FASTA-6GU3 card after 10.9. Therefore, it has become impossible for us to develop a viable driver for the 10.10 platform that will work with the card. Unless you’re able to revert to a previous version of OSX, you will be unable to regain functionality out of the card’s USB 3.0 ports. We apologize for the inconvenience this causes.
Regards,
CalDigit Support
CalDigit, Inc.
It seems you must now buy the Pro version to have OS X 10.10 support.
Total bullshit! I am staying away from this company!