Pros: My old adapter experienced intermittent disconnection on Vista. Now there's no drop off ever with this piece. Also, fast data transfer between computers in my home network. It's so fast and reliable.

Cons: Nothing yet.

Pros: Very tiny and cute.

Cons: The adapter is too fragile, and it is very hard to take it out of the rubber case. Mine was broken after several uses. A-Data tech support never responds to my warranty request.

Overall Review: Look for other brands.

Pros: Fast transfer rate. Small sized, and thin, so easy to carry. No cap to lose :)

Cons: No other accessory like a key chain, string, or lanyard.

Overall Review: Too light, and easy to disappear out of your pocket, so I always carry it with a lanyard that came with Sandisk.

Pros: Now I can transfer files from my old laptop > 10 times faster to my 16GB flash drive. USB 1.1 took hours, but now in minutes with USB 2.0. No problem with Windows 7 Beta, so any Windows version should work with it.

Cons: A little bulky and breakable like all other PCMCIA cards, but it's by design, not a fault.