Does a decent job for people using lower bit rate memory cards. Also 4 or 5 continuous burst shooting works well . Although this card is best used with high end dslr, because what ever the read and write speed of memory. The read and write of your camera cant be changed with the change in memory card .

I have older version of this card with the same write speed of upto 40mb/s as this one. But the write speed of that card actually goes as high as 42mb/s. But the write speed of this new card was in the range of 20-27mb/s most of the time. I bought this one mainly to shoot raw videos with magic lantern on my Canon 70D. So I returned it as its write speed isn't good enough for the intended purpose. Have now ordered the extreme pro instead.A special note on Amazon's service:I just want to say that Amazon provides outstanding service to its customers. The product's delivery was smooth. But the main thing in this case was how efficient and hassle-free the process of returning the product was! Excellent!

Recently I noticed that the memory card is not able to match with my D7000 camera. Sometimes the camera doesn't take snaps as the memory card is not able to quickly save the images. Tried with my other16gb memory card from SANDISK and there is no issues, may be i got a bad memory card. Better to buy from a store.