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.

How to move pictures and other files to an SD card using your computer or Android phone

You can move pictures to an SD card using a PC, Mac, or Android phone, as long as you have the right card and equipment.