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DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Port 2-channel Relay Module Protect Current Circuit

USD 11.09USD 34.65

DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Port 2-channel Relay Module Protect Current Circuit

Description
Specification
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