The CR400AF electric multiple unit, a product of China Railway Corporation's collaboration with CRRC Corporation Limited, represents China's independently developed innovation in the field of high-speed rail. This train operates seamlessly on both China's passenger dedicated lines and high-speed rai……

The train formation is divided into 8-car standard formation and 17 car ultra long formation. The train adopts 5G based train Wi Fi technology. With the coverage of 5G network signals along the line, it will provide passengers with better quality voice calls and mobile network services.

The train is manufactured by CRRC Changke Co., Ltd. It consists of 8 carriages and is equipped with business, first class, second class, and media carriages. The train integrates "high-speed rail+5G+4K" technology to create the world's first high-speed rail 5G ultra high definition Olympic studio, a……

The train is manufactured by PATENTES TALGO S.L. and is a project in collaboration with the Spanish National Railway Company (Renfe). It consists of 14 carriages and is equipped with first and second class carriages.