The 313 Series 300 Subtype was introduced to the Ogaki Rolling Stock Depot in 1999. It primarily operates on rapid and local trains between Hamamatsu and Maibara on the Tokaido Main Line. This two-car configuration features rotating cross seats, with fixed seating at the car ends. From 2024, some units have been transferred to the Shizuoka Rolling Stock Depot, facilitating combined operations with the 315 Series 3000 Subtype U Set.
- Compatible with interior lighting kit Kato 11-211 (11-212)