1PCS/5PCS DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Ports

1PCS/5PCS DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Ports
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sku: 1005006188724930
$9.25
Shipping from: China
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