ETR 421: 6 cars – ETR 521: 5 cars – ETR 621: 6 cars
Electric multiple unit developed for regional traffic, built in formations of 4, 5 or 6 cars, in double-deck configuration.
- Entered service: 2019
- 5 CARS Lenght: 136,8 Metres
- 4 CARS Lenght : 109,6 Metres
- 6 CARS Lenght : 163,4 Metres
- Width : 2,8 Metres
- Height : 4 300 mm
- Capacity of 5 cars: 629 seats
- Capacity of 4 cars: 479 seats
- Capacity of 6 cars: 729 seats
- Maximum speed 160 km/h
