The perfect combination of reliability and speed, these Class 10 performance rated cards deliver transfer speeds up to 24 MB/s. Suitable for full HD video recording and HD still consecutive recording, the Class 10 SD card is the fastest class on the market, and with a 32GB SDHC capacity, your SDHC compatible device will thank you for all the extra love. Store over 4,000 20 megapixel images from your DSLR camera on extended vacations or simply just an avid snapper. Promaster Performance memory cards perfect the balance between speed and reliability. Not just limited to photo storage, you can also use SDXC memory cards to move large files between computers. ? 163X / 24MB/s Read Speed ? 17MB/s Write Speed