My Passport go is the tough SSD drive built to travel. With a rubber protective bumper on the outside, a solid state Drive on the inside, and a built-in cable for convenience; This is no ordinary drive. My Passport go is the perfect drive to take anywhere with confidence. **Based on read speed and internal testing. As used for transfer rate, megabyte per second (MB/s) = one million bytes per second. Performance will vary depending on your hardware and software components and configurations.