Featuring a minimum write speed of 4 MB/s .Transcend’s Class 4 microSDHC cards are a smart and cost-effective choice for you to capture and store more of your everyday life with your mobile gadgets. Each card contains built-in ECC (Error Correction Code) that automatically detects and corrects errors during data transfer, and also utilizes a sophisticated wear-leveling algorithm for consistent long-life operation. Features - Fully compatible with SD 2.0 Standards - Only 10% the size of a standard SD card - SDHC Class 4 compliant - Easy to use, plug-and-play operation - Built-in Error Correcting Code (ECC) to detect and correct transfer errors - Complies with Secure Digital Music Initiative (SDMI) portable device requirements - Supports Content Protection for Recordable Media (CPRM) - Allows In System Programming (ISP) for updating firmware - Supports auto-standby, power-off and sleep modes - Mechanical write-protection switch - RoHS compliant