5pcs Double-sided PCB board 3x7CM 4x6CM 5x7CM 7x9CM Universal Solderable 2.54mm pitch Blue PCB board for DIY and Arduino

5pcs Double-sided PCB board 3x7CM 4x6CM 5x7CM 7x9CM Universal Solderable 2.54mm pitch Blue PCB board for DIY and Arduino

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