Pros: none

Cons: It's advertised to be a 12v / 5v fan, but, the fan itself has only 12v markings on it. It will not power up when plugged into a usb port, I've tried several ports on more than one computer.

Overall Review: Web search shows that many people found this arrangment to be useless, Newegg should not be selling a 12v fan for a 5v usb port.

Pros: if it worked, it's a reasonable price for four USB 3.0 ports

Cons: Neither the drivers on the included CD, nor from the manufacturers website will get this thing to work. Windows 7 did not even recognize it, running the installation from the CD did get it installed, and windows says the drivers are current, but, Win7 can not load the drivers to make the card work.