Lexar JumpDrive Lightning 4 GB USB 2.0 Flash Drive JDP4GB-231 4GB Memory. Can hold up to 4,000 photos, 65 hours of music, and 540 minutes of video. Small, Stylish, and ultra lightweight design. Includes PowerToGo virtual applications platform. Minimum sustained speeds of 140X (18MB/second) write and 160X (24MB/second) read.