For anyone who got this micro sd card, the card reader that came with it is really hard to figure out. I stuck the card in there but could not see a way to get it out. So I took a fine point pair of tweezers and pried it out. Lucky the card didn't break.
Then I went on Adata's website and looked up the card reader. I was surprised to see that you merely had to push in on the opposite end to move the card out of the slot! That's the end where the flashing blue light is, so it's not apparent at all that this part is movable.
I just wanted to pass this on in case someone else finds themselves similarly baffled.
--Pat