Zephyr Trains are the "Goldilocks" trains of Pocket Trains. They have good fuel, speed and decent capacity. They are most effective on African and South American routes because of their high fuel capacity. They are based on the British InterCity 125 trains.
- The byte is a unit of digital information that most commonly consists of eight bits. For example gigabyte .
- Each train's prefix Peta, Exa, Tera and Zetta are all units of bytes. The smallest, Terabyte, equals 10 to the power of 12 bytes or 1,000,000,000,000 bytes or one trillion bytes. The largest, Zetta, equals 10 to the power of 21 bytes or 1,000,000,000,000,000,000,000 or 1 sextillion bytes. Yeesh!
- The shear size of a Zettabyte is represented in the Zettabyte's speed.
- A Zephyr is a "Soft, gentle breeze".