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
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sku: 1005006447089991
$13.00-6%
$12.18
Shipping from: China
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