- Reproduction of the series 211 that operated in the Boso area from 2006 to 2013. These sets were released when Takasaki Depot's series 211-3000 were reconfigured into fixed 10-car formations with a Green car, adopting the yellow and blue Boso color and replacing part of the series 113 at Makuhari Depot. They served in the Boso region for seven years before being transferred to Nagano Depot after the introduction of the series 209. In the year after service began, single-arm pantographs were added to the KUMOHA211 on nine of the 14 sets to improve current collection, creating a distinctive appearance with two different pantograph shapes.
- Compatible with interior lighting kit Kato 11-211 (11-212)