I have received the product with a very fast shipment and great resistant packaging. My choice c is focused on this class of micro sd card 10 32 go for speed. map data for a read 45 mb / s. With my xperia z, I have it tested. I'm at the top with a superior writing and reading 45MB / s. I consulted my photos on my sd card with incredible speed on my xperia z (Camera 13 million pixel) I recommend it eyes closed. small price but did everything