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![4x4 Matrix Keypad Module [16CH] [10 Pin]](https://store.siqma.com/image/cache/catalog/store/SQ4295/4x4_Matrix_Keypad_Module_16CH_10_Pin_ec2814aeb674f2d2f-500x500.jpg "4x4 Matrix Keypad Module [16CH] [10 Pin]")