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Ethernet to RS232 9 Pin Dongle up to 230kbps
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  • $86.99 
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Waveshare USB to UART/I2C/SPI/JTAG Converter, Supports Multiple Interfaces, Compatible with 3.3V and 5V, Multiple Systems Support, Support Linux (Only for Raspberry Pi)
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  • $43.19 
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  • $41.99 - $43.19
IO CREST 2 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SI-ADA15069
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  • $64.99 
  • $5.99 Shipping
Gearmo USB to 3.3v TTL PIN Header Cable
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  • $67.99 
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Gearmo USB to RS-422/485 Converter FTDI CHIP w/Terminals
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  • $69.99 
  • $5.99 Shipping