ATP AF1GSD 1 GB Waterproof High-Speed 80x Digital SD Card High data transfer rate: 80X rated. Up to 12MB/sec. Speed up shooting and file transfers Extremely Portable: They weigh less than 2 grams and are about the size of a postage stamp. Selectable Write Protect Switch: Prevent your data from being overwritten. Reliable: Build with the best SLC components in the industry, they last up to 10 times longer than generic SD (MLC) memory Highly Durable: Waterproof, dust proof, ESD proof, and extremely temperature resistant