USB 3.0 PCIE for snow leopard

i noticed that Lacie has a port that they claim works with snow leopard...
however i guess you only get 3.0 speeds with Lacie HDs (booo)

if possible,can anyone recommend a usb 3.0 PCIE card compatible with a...

Model Name: Mac Pro
Model Identifier: MacPro1,1
Processor Name: Dual-Core Intel Xeon
Processor Speed: 2.66 GHz
Number Of Processors: 2
Total Number Of Cores: 4
L2 Cache (per processor): 4 MB
Memory: 11 GB
Bus Speed: 1.33 GHz
Boot ROM Version: MP11.005C.B08
SMC Version (system): 1.7f10

*sigh...

thank you in advance B)>+

Lots of stories of failures with USB3 PCIE cards, however you might like to try Sonnet. Not real cheap but might be best result:-


http://store1.sonnettech.com/product_info.php?products_id=360

thank you harryb2448... i was hoping for something cheaper but... such is life :-/ with a mac *sigh

If you Google this you will see many have problems with USB3. Alas for you, most reports state Mountain Lion updated to OS X.8.2 is best and has drivers for USB3 PCIE cards.

USB 3.0 Card....on the CHEAP ! - MacRumors Forums