[2] Eight cars (numbered KiHa E120-1 to 8) are based at Koriyama Depot and are used on the following routes.

[3] Until March 2020, the fleet was based at Niitsu Depot and used interchangeably with KiHa 110 series DMUs on the following routes.

[4] The body design is based on the KiHa E200 DMU, and uses a new diesel engine reducing NOx emissions.

[4] The cars are equipped with fare machines for use on wanman driver-only-operated services.

[6] Eight cars were built by Niigata Transys in May 2008, entering revenue service from 1 November 2008.