HELL HELP Sandisk 32GB Extreme 30MB/s testing slow??

Is It better than ImageMate AllInOne SDDR-189?

I ask this because I am testing same card and speeds are 20 MB/s read, 15 MB/s write. My PC was bought this year and has 2.0 high speed USB (480 Mbps / 80 MB/s).

Tests with different software (CristalDisk, HDTach, HDTune Pro, Flash Card Utility, etc)

What am I doing wrong?