InsaneTek

Crucial's Secure Digital line of flash memory comes in four sizes: 128MB, 256MB, 512MB, and 1GB. Secure Digital cards are rated differently. Write and read speed will vary; the faster the speed, the more you pay. Secure Digital is popular due to its low battery consumption and size. Many technological devices adopted Secure Digital as a storage method due to these factors. Like other Secure Digital cards, Crucial's card also has a locking mechanism to prevent accidental deletion and others from deleting your saved data.