This high-speed (Class 10) Secure eXtended Capacity Capacity (SDXC) memory card combine massive storage capacity, blazing data transfer rates and ironclad security in a memory card no bigger than a postage stamp. It is an ideal expansion option for the smallest of devices including MP3 players, digital cameras, PDAs, smartphones and more. For added reliability and durability, the solid-state SD memory card is built of non-volatile memory components and have no moving parts. Quickly and easily download and transfer digital files between various digital devices, a computer and the Internet.
Will this work for a galaxy S4?
No, it will not work with Samsung Galaxy S4. This is an SD card, but you need a micro SD.