3PCS 8CH RS232 TTL232 IO Control Switch Com DB9 Serial Port DC5V 12V For Arduiuo MEGA NANO Delay Relay Module

3PCS 8CH RS232 TTL232 IO Control Switch Com DB9 Serial Port DC5V 12V For Arduiuo MEGA NANO Delay Relay Module
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sku: 1005005731380844
$16.90
Shipping from: China
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