Summary: !!! My rating is actually 1 STAR ONLY !!! I would not recomand anyone buying this product, unless your intention is to keep the card into the device or camera forever. I bought 4 of those & already 2 broke into pieces. The front element, close to the pins, is especially fragile. I handled the cards with extreme care, but after a few weeks, the plastic pealed off in tiny pieces. Result is 80 box in the garbage ! Those are not worth any penny.
Pros: 16GB, attractive price.
Cons: Very Cheap chinese product, cheap plastic, unreliable, lasts 2-3 months. Good for the garbage after.
Summary: My 8GB Class 6 Patriot card was faster than this, but I'm not sure if that is representative of Patriot's 16GB card. In any case, it's fast enough that my Zi8 doesn't drop frames, so it's fast enough for me. Recommended, especially when on sale.