E217系 東海道線を中心に掲載しています。
Although EMU Series E217 was designed and built for Yokosuka and Sobu Line, some of them got surplus as Shonan shinjuku Line opened, in which only E231 serves. In 2006, 4 trainsets converted to Tokaido Line, with Shinan color (orange and green) belt. They always run in 15 cars.