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USBGear Dual RS-232 USB Serial Adapter with LEDs, Surge Protection, Plug & Play
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  • $90.99 
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CH340B USB to RS485 RS422 Serial Communication Module Converter Adapter Cable
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  • $113.99 
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USB to 4-Port Independent RS-485/RS-232 Converter RS485 RS232 COM Serial Port Adapter Cable
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  • $239.99 
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GRIDCONNECT RS232 to USB - ATC-850 Industrial USB to Serial RS232/422/485 Adapter
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  • $225.99 
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Coolgear 1-Port USB to Serial Adapter (RS-232/422/485), DIN-Rail
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  • $207.99 
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10 Pieces of FT232RL Mini USB to TTL Serial Converter Adapter Modules, 3.3V/5.5V.
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  • $82.99 
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USB to 4-Port Independent RS-485/RS-232 Converter RS485 RS232 COM Serial Port Adapter Cable
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  • $239.99 
  • Free Shipping
FT232RL FT232 USB to TTL 5V 3.3V Download Cable to Serial Adapter Module USB to 232 50pcs C33
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  • $209.99 
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USBGear USB to Terminal Wire RS422 RS485 Mini FTDI Plug-in Adapter
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  • $89.99 
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DeLOCK Adapter USB 2.0 Type-A to 1 x Serial RS-232 D-Sub 9 Pin Male 1 m White
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  • $155.99 
  • Free Shipping