Review on SP Silicon Power 64GB SDXC UHS-I Memory Card: Elite Series, High-performance Storage Solution by Michael Straughter

I bought 2 of these cards and each one outperformed what I thought was the best brand. Although all cards are Class 10, UHS-1, their performance varies widely. This card I can consistently assume is dead at 85MB/s. I got this card out of necessity and it turned out to be a very legitimate performance boost over what I thought was a card she would easily surpass them. We are talking about a margin of 20-30%.