How big is your MicroSDHC card and speed?

[Young_breedent]

I have a 16gb from sandisk and it is class 2....what are the differences in class???? Do they cost more??? Are they really that much faster???

I got mine from Best Buy when i bought my touch pro they only had one and i thought that it would be the best that sandisk offered but i didn't realize it was class 2 until i read this thread and checked my card. But the speeds are very fast in comparison to some other micro and mini sd cards i have used.