Pros: Windows 7 found the card, and a quick test showed that a file transfer from an external hard drive took less than half the time as with USB 2.0 Then in a quick test with Linux Mint 17.1, the same file transfer took less than a third of the time as with USB 2.0. Tried a couple other Linux distros, but they didn't find the card. Go Mint! Card does what it promises, a nice inexpensive upgrade to a laptop that lacks USB 3.0.

Cons: None.

Laptop was 100% functional, and actually had more RAM than what was indicated in the ad. No problem! Laptop was clean and well packaged.

Battery arrived quickly, but it didn't quite fit my phone. Called the vendor, left a message. Call was returned a couple hours later, and I was told they'd send me a refund check, and to just keep the battery. Check arrived less than a week later. Good experience. I'd do business with these folks again.