What is an SD card? Here's what you need to know about the small memory cards for electronic devices

SD cards, short for Secure Digital cards, are small thumbnail-sized memory storage cards with max capacities ranging up to 128TB.
Ars Technica

Is there a way to use a Lexar Media reader?

I have a Lexar serial (uses the printer port and the power from the mouse PS2 port) reader that is used to read those CompactFlash digital film cards? Is there a way to mount that drive so I can ...