The amount of capacity you need depends on the types of files you have, how big they are, and how many there are. | Extreme transfer speed to move data from the card to computer at up to 160MB/s (1067X) read speed | Video Performance Guarantee- 65 (VPG-65) specification allowing Full HD video and 4K cinema quality video1 performance with minimum sustained write speed of 65MB/sec | Writeable label for easy identification and organization ; Compatible with host devices that support Compact Flash | The Power Core controller's firmware algorithms through wear leveling enhance endurance of card by moving the data efficiently across the memory card