DC 12V 24V 8ch USB Serial Port Relay Optically isolated IO Module UART RS232 Switch Board CH340 for WIN10 WIN7 Linux MAX OS

DC 12V 24V 8ch USB Serial Port Relay Optically isolated IO Module UART RS232 Switch Board CH340 for WIN10 WIN7 Linux MAX OS
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sku: 1005003041034465
$2.32
Shipping from: China
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