Summary: Great card! No difficulties doing the install, recognizes everything I throw at it. Very fast transfers. This one blows away the Mediasonic one, which I threw out. I wish I had bought this one first.
Summary: Got the item and installed it with no issues. Followed the installation instructions and the unit was good to go, but when I went to complete a file transfer with a USB 3.0 external hard drive using a USB 3.0 cable and the unit, I was only getting USB 2.0 speeds (Approx. 33 Mbits/sec). I later got confirmation from my computer that the card wasn't working properly when it gave me the prompt that "THIS DEVICE COULD PERFORM FASTER".
Summary: It was very easy to install this adapter to my HP desktop. Be sure to follow the step-by-step instructions - these are clear and easy to understand. I used the short bracket (included) for a perfect fit inside my small form factor case. I really enjoy the faster file transfer speeds to my external backup drive.
Summary: To my surprise, the board itself could not draw the power it needed from the bus - it needed one of the power leads from the power supply. Since I bought the board for external USB-3 drives, it is safe to assume that someone who needs external drives has already saturated his system with internal drives - thus consuming many of the existing power supply leads! I will probably pick up an externally powered, USB-3 hub to go with it.
Summary: Got the product real fast. Easy to install but i have to get a 4 pin power extention cable because the way my pc i built i could not extend it. I wish they would have included a cable in the box. Getting up to 91MB/s of transfer with my USB 3.0 external drive. Very satisfied.