Important Notice

1) M5271 and M5273 user must choose either ALi EHCI driver or OrangeWare EHCI driver depending on the Windows driver supplied in companion driver CD to upgrade Windows USB 2.0 host controller driver.  

For example, a card installed with ALi EHCI driver must only be upgraded with ALi EHCI driver and a card installed with OrangeWare EHCI driver should only be upgraded with OrangeWare EHCI driver.  

The ALi EHCI driver name is in the form of "AliEHCI_***.zip" and OrangeWare EHCI driver name is in the form of
   "U2v*_*_*.exe" here "***" and "*_*_*" stand for driver version.

2) DO NOT upgrade the ALi EHCI driver or OrangeWare EHCI driver with driver supplied from other vendor.  Doing so will cause system
   unstable.

3) User should make sure Mac OS is supported by your card before installing OrangeWare Mac OS driver.