Cassette holder for automated teller machine

A cassette holder for an automated teller machine, the cassette holder comprising:

• a first holding portion configured to hold a first cassette;
• a second holding portion configured to hold a second cassette having a different size from the first cassette;
• side links disposed at both side surfaces of the first holding portion and configured to move in a front-rear direction in association with movement of the first holding portion;
• and
• a locking means configured to lock or unlock the side links in a state in which the first holding portion is moved to a second position,
• wherein the first holding portion is provided to be movable in the front-rear direction between a first position at which the first holding portion is positioned at a front side of the second holding portion to hold the first cassette in the first holding portion and the second position at which the first holding portion is positioned at a rear side of the second holding portion to hold the second cassette in the second holding portion.