NewerTech MAXPower 2 x 2 USB/eSATA PCIe 2.0 Host Adapter for Mac OS X 10.6-10.8.2

Somehow my computer downloads 10 times faster. The USB 3.0 inputs really work. Just turned my 6 year old Mac Pro into a much more modern machine.

Does not work with Yosemite 10.10.2 or 10.10.3. Tried on three mac pros running both operating systems. Card will provide power to drives connected by USB, but will not mount the drives to the desktop. Tried installing drivers also, but this made no difference.

Some posts said this worked under Windows and a call to NewerTech confirmed that it is ONLY a Macintosh product (there are no Windows drivers available).

Works with Mac OS X Yosemite. Very fast. Easy install.

Simply works as intended. Great device fast, reliable. No Cons, all pros.MCP 2 :) Drivers can be downloaded @ http://eshop.macsales.com/item/NewerTech/MXPCIEL2ESU3/

Delivered on time. Plugged in, got the update from Macsales. Works great

doesn't really work that often...then crashes my mac...

This card rocks on my mac pro