SD card - definition

SD Memory Cards (Secure Digital Memory) is a digital storage media and is a type of Flash Memory format. They are often used for digital media applications to save audio, picture and video files. Numerous devices make use of SD Cards most prominent examples are camcorders, digital cameras, video recorders, PDA s, Sat Nav and so forth.

The development of SD Cards are based on the similar but older MMC (Multi Media Card) format. The SD Card can have the option of DRM (Digital Right Management) encryption features, which were intended to safeguard stored data (like music files) against piracy; essentially memory card to memory card copying. The main physical difference to the MMC card is that the SD card is slightly thicker. Also the SD Card often come with an optional write-protect tab. This can allow the user to make the data read only files and hence to protect the data from accidental deletion.

If you need to read or transfer photos, video or files from card to card or memory card to computer, then we have a good range of memory card readers available via our online shop.