Mini sd card:

Outstanding Features: 
 
* Easy handling for the end user
* Reliable electrical interconnection
* Bearing textual information and image
* Dimension: 20mm(W)x21.5mm(L)x1.4mm(T),9 pins; 0.8g
* Add MiniSD card adapter can be use in SD card socket. Noise-free operation
* OEM: Each Memory cards is customized with your company's logo

Specification: 
 
* Capacities: 128MB-4GB
* Interface: 11-pin interface but can be fitted with a 9-pin adapter
* Supports: SD and SPI communication protocols
* Complies with SD Card Specification Ver 1.01 (Function, Electrical Characteristic,
Registers)
* Complies with MiniSD Specification Ver 1.02 and forward compatibility to MultiMedia
Card.
* On card error correction
* Read / write specifications: 512 byte block read / write plus multi-block read / write capability
* Operating voltage: 2.7V to 3.6V
* Operating temperature: -25°C to +85°C
* Variable clock rate: 0 - 25MHz
* Other features: defect & error management (inc. ECC), automatic sleep mode, hot insertion / removal, write protection, erase function, power protection, password protection, copyright protection (SDMI compliant)
* Low power consumption :
Automatic power down and automatic wake up, smart power management
Bearing textual information and image
No external programming voltage required.