Keyboard having fingerprint identification modules

A keyboard comprising a plurality of key caps, a plurality of key supports, a circuit board, a plurality of resilient elements, a plurality of fingerprint identification modules, a microprocessor, and an aluminum board wherein:

• each key cap is a square and includes a hollow leg structure of rectangular section extending downward, and a rectangular recess on a top;
• each key support includes a hollow frame of rectangular section attached to the leg structure;
• the circuit board is disposed between the key supports and the aluminum board;
• each resilient element is disposed between the key cap and the circuit board;
• each fingerprint identification module is disposed on the key cap and electrically connected to the circuit board;
• the microprocessor is disposed on the circuit board and electrically connected to the fingerprint identification modules;
• and
• the aluminum board is configured to support the circuit board from below and includes a plurality of pivotal seats on a top, each pivotal seat passing through the circuit board to fasten the key support, the circuit board, and the aluminum board together.