Seller: rossmore7358
Reasons why I strongly believe it is a counterfeit:
There are spelling mistakes on the back of the item packaging. The microSD to regular size SD card clearly looks like a fake. The microSD says it is made in Taiwan when Samsung memory is made in Korea. I ran a test with the program H2testw and it failed verifying after 8GB where the card is supposed to be 64GB. The write speed is less than 10 Mb/s and read speed is under 20 Mb/s while packaging advertises speeds of 48 Mb/s