Hi,
SanDisk is recently changing all the speed class in many formats, as SDHC and microSDHC.
Regarding the microSDHC 32GB SanDisk of class-2 has been improved up to Class-4, but anyway it´s important to say that class means minimun write speed guaranteed but not máx. speed.
We did some test of benchmarking with the microSD HC 32GB Class-2 and the results were:
Read 13MB/s - Write 4-5 MB/s
Results obtained with CrystalDiskMark 3.0
That proves that class-2 is about min. speed, because in this case results said that this card is a Class-4 in fact as the write speed was about 4-5 mb/S.
Most stores do have the microSD 32GB class-2 in stock, and the Class-4 is more easy to find at specialised stores.
I put the two pics of SanDisk microSD 32GB Class-2 and Class-4
Note that part number changed :
SDSDQ-032G-E11M : microSD HC 32GB Class-2
SDSDQM-032G-B35 : microSD HC 32GB Class-4
Here are the photos:
And this is the Class-4 version with the new smaller blister:
