Update: installed in my hp z800 for sata3 ssd boot device.
Works great to speed up boot time and application loading time on my hp z800. I have a generic kingston 120gb ssdnow v300 (521a) drive as my boot device. Update: sounds like i should be getting better performance out of this. Please read reviews for the kingston ssdnow v300 ssds and you'll learn more. I will update when i move off this kingston ssd and on to a samsung 850 evo. More to follow.I don't have any hard numbers to quantify before and after performance, but everything seems a bit more zippy than before.At first, i got errors on boot up about "110 - out of memory for option roms" and press f1 to continue.To resolve this, i updated to the latest firmware (may not be necessary, but i took this as an opportunity to do so).When prompted, press f10 to enter the bios settings. Go to the advanced menu at the top, and click on device options.I disabled the "nic pxe" option since i don't plan on using network boot.If you're not using sas drives, you can go ahead and disable that too.Do not disable the sata raid option.Save your changes and exit.I ended up having to go back in to the bios to change up the boot order since attaching my ssd to the new controller sent that drive all the way to the bottom of the boot list. Not sure if this is the experience for everyone.After all that, during boot up, you get another screen that comes after the lsi raid screen that shows the new controller and any drives attached to it.It's been a few weeks and all appears to be well. Haven't used the usb3 ports yet since i have no usb3 devices, but that shouldn't be far off.Update (4/3/2015) - so i plugged in a samsung 850 evo and ran benchmarks before (on kingston ssd) and after. (see attached pics) pretty cool measured performance jump. Overall experience for me even feels more snappy than before. This adapter works very well for the money. I plan on re-doing my kingston ssdnow v300 review here shortly.