Secure Digital Card (SD Card)
Definition - What does Secure Digital Card (SD Card) mean?
Techopedia explains Secure Digital Card (SD Card)
- MicroSD (15 mm × 11 mm)
- MiniSD (21.5 mm × 20 mm)
- SD (32 mm × 24 mm)
A key SD card feature is that it may be transferred between compatible devices. For example, vacation photos may be transferred from a digital camera to a PC. After inserting the camera's micro-SD card into the PC's corresponding slot or adapter, the PC recognizes the card as a new drive.
The SD format is governed by the SD Association - a global consortium of manufacturers.