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USB to RS232 universal serial cable  USB to DB9 pin COM debugging cable  PLC engraving machine communication data cable  1.5m
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  • $37.99 
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  • $36.59 - $37.99
Motherboard serial port USB 2.0 9-pin 19-pin to dual 9-pin interface conversion, 9-pin to 2-port expansion hub hub adapter
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  • $28.21 
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  • $26.81 - $28.21
USB to RS485/422 Serial Cable - Industrial-grade USB 2.0 to 9-pin COM Port Attendance Machine Debugging Cable
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  • $78.94 
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  • $75.94 - $78.94
K1t-1ur-p-isolated USB to 485(high protection) USB to RS485/232 industrial grade TTL serial port module debugging converter
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  • $25.19 
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  • $23.99 - $25.19