In 2001 IBM sold these types of USB drives called "memory keys" in 8MB size; today you can get them in gigs
.... ROOFULL Waterproof Type-C USB 3.2 Flash Drive Flash Memory Disk 
for... [DOC] [TLE] Full text of "PC Answers Issue 147 (2005-07)(Future Publishing)(GB)" [PAR] How much more can these institutions do to protect the consumer?