DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Ports, N221B02
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sku: 1005003351016704
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DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Ports, N221B02](http://ae01.alicdn.com/kf/Sca12b81b6b7141aaa90eead7249b6419Z.jpg)
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DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Ports, N221B02
![DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Ports, N221B02
DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Ports, N221B02](http://ae-pic-a1.aliexpress-media.com/kf/Sdfeb9b0586224c319adf04d6c6ecf75cL.jpg)
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DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Ports, N221B02