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4 Serial Port RS232/RS485/RS422 to Ethernet Converter
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  • $164.68 
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2 Port RS232 Serial PCI-Express Expansion Card RS232 COMM DB9 Pin WCH382L Chipset
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  • $20.69 
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FOR PCIe to 2 Ports DB9 RS232 Serial DB25 LPT Converter card AX99100 Chipset
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  • $29.70 
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2021 Latest 4.0 BLE TI CC2540 module low power HM-11 serial port module fit
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  • $17.90 
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3.3V UART serial to RS485 SP3485 Transceiver Converter Communication Module
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  • $18.90 
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CH343P USB to Serial/TTL UART Module 3.3V 5V Switch Instead CH340
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  • $17.90 
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Vszerda DB15 Breakout Connector, Serial Female to DB15 Screw Terminal Signal Module with Plastic Case & Accessories (Black)
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  • $28.29 
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TTL-232R-3V3, USB to TTL serial converter, FTDI original chip, 1.8M, 3.3V
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  • $19.81 
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FOR Dual 2 ports Serial 9 pin DB9 RS232 Motherboard Com Ribbon Cable slot Bracket
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  • $17.50 
  • Free Shipping
8266 serial WIFI Witty cloud Development Board -12F module MINI
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  • $12.90 
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FOR PCIe to 2 Ports DB9 RS232 Serial DB25 LPT Converter card AX99100 Chipset
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  •  
  • $29.70 
  • Free Shipping