Electronic apparatus and detachable assembly thereof

An electronic apparatus, comprising:

• a housing;
• a circuit board disposed in the housing;
• and
• a detachable assembly disposed in the housing, the detachable assembly comprising:
• a main frame;
• a tray for mounting a storage device and being detachably combined with the main frame, the tray comprising a base board and two lateral boards opposite to each other, each of the lateral boards being substantially perpendicularly connected to the base board, and each of the lateral boards extending outwardly to form an actuation part, the actuation part comprising a hook part;
• at least one button unit, each of the button units comprising a button movably combined with the main frame, and the button comprising a protruding part corresponding to the hook part;
• when the tray is combined with the main frame and located in the fixed position, the protruding part of each button and each hook part of the tray form a locked status;
• when each button is moved along an axis toward the main frame by an external force, each protruding part is released from the locked status with each hook part and the tray is pushed by the button to move along a plane substantially perpendicular to the axis such that the tray leaves the fixed position and is detached from the main frame.