With SD cards, what difference do classes make? Do they only affect speed?
Aug. 26, 2011 at 10:29
In theory class identifies speed.
In actual life they are pretty much useless. You get what you pay for. Sandisk extreme cards are rated as class 6 and outperform most of class 10 cards. Play class 10 struggles to beat Sandisk class 4. I have PNY Class 4 that works faster than Transcend Class 10.
Pay more money and get a brand name.
Aug. 27, 2011 at 15:19
That said, my Class 2 Sandisk is a bit of slowpoke. Whatever brand you get, I'd recommend Class 4 as an absolute minimum.
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