SD Card..!!!

• Short for Secure Digital Card

• The SD Card is one of the more common types of memory cards used with electronics.

• It is considered the industry standard due to the wide use.

• The SD card has a recognized maximum storage capacity of 2GB (gigabytes), but 4GB versions do exist.

• The 4GB versions were not widely used due to issues & limitations with the technology at that capacity.

• It consists of 8 pins and its connector is of 9 pins.
  

 The 3 versions of the SD card

1. SD
2. miniSD 
3. microSD