4PCS N228D02 DC 12V 24V 2Ch DB9 UART Relay Module RS232 Serial Port Switch Board for PC PLC Motor LED PTZ

4PCS N228D02 DC 12V 24V 2Ch DB9 UART Relay Module RS232 Serial Port Switch Board for PC PLC Motor LED PTZ
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sku: 1005006058075336
$22.17
Shipping from: China
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