All of the anti-OS 9 people here seem to be missing the fact that Sonnet's upgrades, especially the Tempo Trio, which I use, are geared for macs that DON'T have high speed ATA, firewire, or USB. I run my Trio in an 8500, and 9 is my main system. While it would be awesome to have an OS X flasher for this card, and I don't know why it's not been done yet, the OS 9 one gets the job done.

For those that have fast newer macs, and all you use is a Tempo ATA/100/133, yes, an OS X installer would be more convenient, and necessary on the newest macs. But anybody using a Trio is 99% likely to have a mac that lacks what the newer macs have.

As for my review here, I'm using firmware 4.5 (noted on sonnet's page for HDs >127 GB), and I hate to say it, but it does NOT fix the problem where OS X refuses to boot up from a HD that is >127 GB *and* has an 8 MB cache/buffer, which is the selling point of this update. I have a WD 200 GB SE HD w/ 8 MB Cache, and OS X cannot boot up off it because of the 8 MB Cache controller causing problems still. It's a shame too, considering this particular Drivezilla is very fast, and OS X would greaty benefit from the added speed.