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What are the gold squares on the circuit board?
Tantalum capacitor. The gold square on the circuit board is a tantalum capacitor, which has a protective effect on the computer. The names of circuit boards include: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high-frequency board, thick copper plate, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board, etc.