The E657 series, introduced in 2011 for the Joban Line as a DC/AC limited express train, continues to be a key player and iconic express train on the Joban Line. In conjunction with the Ibaraki Destination Campaign in 2023, the E657 series received a livery reminiscent of the classic E653 series "Fresh Hitachi," captivating many railway fans along the line and beyond. Five different color schemes have been introduced, and as the third installment in KATO's lineup, the K2 train set in yellow livery is being produced.
- Reproduction of the K2 train set belonging to the Katsuta Vehicle Center
- Revival livery inspired by the E653 series "Fresh Hitachi" (Yellow), with daffodil motifs
- Features unique emblem per train set (Yellow: Hitachi Seaside Park and daffodil)
- Realistic reproduction of pantograph surroundings, insulators, high-voltage equipment, train radio antenna, and WiMAX antenna typical of DC/AC trains
- Equipped with a coreless motor for smooth and quiet operation
- Standard features include body-mounted KATO coupler tight coupling and body dampers in the intermediate connection section
- Underfloor equipment, bogies, body dampers, and head dummy coupler in gray
- Green tinted glass windows on the front and side, as seen on the real train
- Includes destination display stickers
- DCC Friendly
- Compatible with interior lighting kit Kato 11-211 (11-212)