They are OSE rolling stock and belong to the Desiro Classic generation, while they were manufactured by Siemens in 2006.

They have an electric engine and reach speeds of up to 180 km / h, and have a capacity of 304 people[2] Their weight is 150 tonnes.

[3] The traction of the train is carried out by two pantographs that touch in aerial cables.

[12] The coloring of the wagons consists of purple horizontal strips on white, covering the largest surface of the vehicles.

Later, it was applied to the majority of vehicles, advertising overlay on biodiversity, by DEI, as well as other advertisements[13] as an attempt to repair their bad aesthetic image after being vandalized by graffiti.