4GB microSDHC (Class 4) High Capacity micro Secure Digital Card

Guaranteed minimum DTR 4MB/sec.

SDHC (Secure Digital High-Capacity) is a new Flash memory
card based on the SDA (Secure Digital Association) 2.00
specification. SDHC provides removable memory storage for
compatible digital devices, including cameras, camcorders,
mobile phones, PDAs, MP3 players and more.

 
The increasing use of high-definition video, high-resolution
digital photography and mobile applications demands higher
storage capacity and more demanding data transfer rates.
Because of this, the new SDHC cards guarantee a minimum
sustained data transfer speed, not a maximum speed