Trade Twin Pack 2 x 32GB Memory Card class 10 SD SDHC Memory Card class 10 FOR Canon PowerShot SD770 IS 2 x 32GB Class 10 Ultra High Speed SDHC Memory Card class 10 Life time warranty Data is not lost when power is turned off Write Speed: 19MB/s. Read Speed: 20MB's All Cards shipped FedEx Express with Tracking Number for a trouble free serivice 2 working days to most parts of the USA