A low profile structure is disclosed. The structure includes a printed circuit board (PCB), a bracket, three connectors and an extending module, wherein the bracket is connected to the PCB to form the body of the low profile structure. In addition, one of the connectors is an extending connector and the other two connectors are configured on the bracket and are directly connected with PCB. The extending module further includes an extending PCB so that the extending PCB is electrically connected to the extending connector and the extending PCB is electrically connected to PCB. Therefore, the extending connector can be electrically connected to PCB via the extending PCB.