The Caravaggio (Rock for Trenitalia) is an electric multiple unit (EMU) developed and built by Hitachi Rail Italy.

In June 2016, Trenitalia ordered the Caravaggio, awarding Hitachi Rail Italy a €333 million contract to supply 39 five-car multiple units.

[5] In September 2018, Ferrovie Nord Milano (FNM) announced it planned to purchase up to 120 Caravaggio EMUs over an eight year period, beginning with a €238 million order for 30 four-car trainsets.

[6] From 5 September 2022 the ETR 522s entered service on the Ferrovienord Saronno–Laveno railway line [8] The Caravaggio is a high-capacity double-deck EMU for regional traffic, each car is about 27 metres (88 ft 7 in) long.

[10] Each train is powered by a 3 kV DC electric system producing 3,400 kilowatts (4,600 hp) and a maximum speed of 160 kilometres per hour (99 mph).

The doors are fitted with movable steps to cover the gap between the platform and vehicle when the train is stopped; a manually-operated ramp is available for passengers with reduced mobility.