DES 270km/h EMU is a power concentrated high-speed EMU which has intellectual property in China.

The train-set feature modular design, GTO water cooling converter, high power asynchronous traction motor, scattered micro-computer network control system, thin shell broad-body, independent ventilation on interlayer of car roof, combined aluminum board cooler.

This kind of AC propulsion train broke Chinese train speed record on Nov. 27, 2002, clocking 321.5 kilometers per hour during a test run. It has been put into passenger haul running on August 1, 2005.