Komachi (trains)': E3 series Shinkansen train-cars are used: Basically, this train is operated connected to a 'Hayate' train in the southern section of Morioka Station (some Komachi trains run between Akita Station and Sendai Station independently, and are connected to a Hayate train at Sendai Station).
「こまち(列車)」：E3系を使用し、盛岡以南は基本的に「はやて」と併結（一部は秋田駅-仙台駅を単独運転し、仙台ではやてと併結）。