This sold out… It went very quickly to 100% claimed and eventually ran out… That’s the problem with lightning deals, if it’s too good, it sells out very quickly…

The 64GB Sandisk Extreme SDXC 90MB/S C10 Flash Memory Card (model SDSDXNE-064G-ANCIN) is a lightning deal for $21.50 at Amazon, and as of 7:14pm ET, it is 100% claimed. You can join the Waiting List for a chance to get it. It started at 6:55pm ET. People have 15 minutes to complete a purchase after they add it to their shopping cart. For every person that does not buy it, the first person in the Waiting List gets his/her 15 minutes chance. This continues until either they run out of available quantity for the promotion, or the promotion expires. This looks like it will sell out long before its official expiration time.