Sandisk A61 vs X46
Looks to me like the same card. Could just be the packaging.
I've had good luck with Sandisk customer support when I have had questions. I recently purchased a similar card online with a "too good to be true" price and got my answers from them by posting a question on their online support page.
"Outside of a dog, a book is probably man's best friend, and inside of a dog, it's too dark to read."
-- Groucho Marx.