Kingston, DTS/4GB USB Flash Drive (retail) Capacities1 - 512MB, 1GB, 2GB, 4GB, 8GB Secure - utilizes 256-bit Advanced Encryption Standard (AES) hardware-based encryption (privacy zone) Waterproof - protects against water damage2 Fast - data transfer rates of up to 24 MB/sec. read and up to 10 MB/sec. write3 Guaranteed -- five-year warranty