MiniSD
Announced for the first time by SanDisk Corporation at CeBIT 2003, the miniSD joined the MemoryStick Duo and xD-Picture Card at this small form factor.
The miniSD card was adopted in 2003 by the SD Association as an ultra-small form factor extension to the SD card standard. While the new cards were designed especially for use in mobile phones, they are packaged with a miniSD adapter which enables compatibility with all devices equipped with a standard SD Memory Card slot.
Specifications
| miniSD Card | SD Memory Card | |
| Width | 20 mm | 24 mm |
| Length | 21.5 mm | 32 mm |
| Thickness | 1.4 mm | 2.1 mm |
| Card Volume | 589 mm3 | 1,596 mm3 |
| Weight | Approx. 1 g | Approx. 2 g |
| Operating Voltage | 2.7 - 3.6V | 2.7 - 3.6V |
| Write-protect Switch | NO | YES |
| Terminal Guards | NO | YES |
| Number of Pins | 11 pins | 9 pins |