Samsung UHS-I class microSD cards launched with 64GB space at IFA 2012
Into Mobile

For mobile storage speed freaks--and yes, they do exist--Samsung has officially launched 64GB variants of its USH-I class microSD cards at IFA 2012. These new cards offer read/write speeds of up to 70MB/20MB per second and are available in Pro editions meant for use with LTE-enabled phones and tablets. The release has been scheduled to happen some time in mid-October.

What Else You Need To Know:

- Samsung also launched regular SD card-sized versions of these which offer 80MB/40MB per second read/write speeds.

Other sources

In the meantime, you’re good to go with existing microSD cards. They still do the job for me. - Dusan Belic, Intomobile  
Phone Scoop
Samsung Intros High Speed 64GB Memory Cards  

The new cards include SD and microSD form factors.

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