SanDisk Cruzer Micro, a brand of USB flash drives.

A zKingston card reader which accepts Micro SD memory card (Transcend card shown inserted) and acts as a USB flash drive, resulting in a size of approximately 2 cm in length, 1 cm width and 2 mm in thickness.

Punched cards in storage at a  U.S. Federal records center in 1959. All the data visible here would fit on a 4 GB flash drive.