FYI... I was trying out my new ODROID-U3 with 16GB Adata microSD, http://www.canadacomputers.com/product_info.php?cPath=11_1216_175_177&item_id=058665 I was actually looking for 8GB one, but they were out of it. Adata specs says - 10MB/s write -- I got 13MB/s, so it's in the ballpark. - 30MB/s read -- I got 80MB/s. It may go higher, but probably limited by my card reader. It's rare to see something above published specs. -- William