SanDisk customer support asked me to check the numbers on the back of the card. This is what they said: "Dave, this is not an authentic SanDisk card. ...according to the information you have provided it appears that the card is not an authentic SanDisk card. I would request you to contact the place of purchase for the replacement of this card."
Purchase information:
Third party through Amazon.com: Sold by Dream & Night
Seller: Summer As
Order Placed: February 26, 2015