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.