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DB9 Serial Cable 9Pin RS232 Male/Female Straight/Crossover Type PC Converter Expansion Cable 1.5M Extension Cable

15 Pin To 9-core Serial Port Connector RS232 Communication Data Cable Revolution Bus VGA Revolution DB9 Hole Adapter0.5M

3 Pcs Mini 3.3V Auto RS485 to TTL232 Converter Board SP3485 LVTTL RS232 MAX3485 for FPGA CPLD ESP8266 HC-05 Wifi R411A01

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13.56mhz RS232 DC12V Waterproof rfid 125khz Card Reader 5V read head customization With RS485 TTL Level Access control Card Read

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