That was a description for a Kingston card on Amazon.com. I only see class 4 & 10 on Amazon.I'm a bit confused about your description of the card you have in mind. Class 10 vs. UHS-1 ... the UHS-1 is a new 'class', and is a faster device than a Class 10. Not sure how a card is advertised as being both at once. Should be either one or the other.
That said, either will be MORE than adequate. A Class 6 card will keep up with the TomTom well enough.
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