The Euroduplex trains are interoperable, containing equipment allowing them to travel between several European continental countries with various types of electrification and signalling systems.

[citation needed] The Euroduplex has entered commercial operation by the French national railway company on 11 December 2011.

[9] On 16 June 2010, the train arrived at the site of ELWT Conflans to be equipped with different systems to perform many tests in the coming months before commercial operation.

Between 20 and 30 July 2010, the train conducted speed tests in Switzerland, Germany, the Netherlands, Belgium and the French Alps.

They offer a new interior design and a capacity expanded by 10% mainly due to the third car being multi-class, and were delivered between 2016 and 2019 and are numbered from 851 to 891 (minus 866, which only consists of power reserve motors).

To save the workforce of the Alstom factory in Belfort, the French government announced in October 2016 the purchase of fifteen trains to be used on the intercity line between Bordeaux and Marseille.

[16] The first two cars will be delivered during the summer of 2015[needs update], transported from the port of La Rochelle by the ship Ville de Bordeaux.

[citation needed] The project being more than two years late on its initial schedule (due to land acquisition difficulties), Alstom Transport incurs additional costs, in particular through the forced storage of several trains in its factories.

[21] It is operated in partnership with SNCF, within the framework of the joint venture "Moroccan high-speed train maintenance company".