SD Memory Card is a Flash-Based memory card. It was specifically designed to meet the security, capacity, performance and environmental requirements of the latest-generation of audio and video consumer electronic devices, that is mobile phones, digital cameras, digital recorders, PDAs, organizers, electronic toys, etc.

Specifications
Weight: 2g
Dimension: 32mmx24mmx2.1mm
Compliant: SD Specification Ver 2.0
Number of pins: 9
Data bus width: 4 bit
Voltage range: 2.7v-3.6v
R/W Endurance: 2,000,000 times