The best microSD cards may be the size of an adult thumbnail but they can now hold as much as 2TB, which is an extraordinary amount of data, the equivalent of thousands of hours of high-definition ...

SanDisk Extreme 2TB microSD Card $180 (was $210) Up until very recently, the 1.5TB card was the largest SanDisk offered, but now there's a 2TB SanDisk Extreme , and it's also on sale for Black Friday.