SDHC UHS-1 Series 32GB Class 10 High Speed MEMORY CARD FOR Pentax Optio WG-1 digital Camera Camcorder Video 32GB Class 10 Ultra High Speed SDHC UHS-1 Memory Card Designed for Cameras Life time warranty Data is not lost when power is turned off Latest Technologies; Future Proof and Compatable both with SDHC, SDXC and USB 3 Devices , with Write Speed Over 55MB/s. Read Speed: 25MB's All Cards shipped with FedEX Express Tracking Number for a trouble free serivice 2 working days to most parts of the USA