Another device available at Walmart is the Vivitar Mobile SD, Micro SD and Compact Flash Card Reader, which retails for $39.99 but is often discounted under $30.

With read speeds of up to 150MBps, facilitated by the optional SanDisk MobileMate USB 3.0 microSD card reader, it’s hard to argue.

There's also a 1Tb card equipped with V-NAND, expected to be released in the third quarter of next year. The good news is MicroSD Express cards work with Android phones.