SanDisk 4GB Mobile MicroSDHC Class 4 Flash Memory Card- SDSDQM-004G-B35N Available capacities: 2 GB, 4 GB, 8 GB, 16 GB, and 32 GB Seamless speed and performance with microSD/SDHC compatible devices Class 4 Speed performance rating (based on SD 2.0 Specification) Tested under the most extreme conditions 5-Year limited warranty