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FTDI FT232RL CHIP USB TO RJ12 6P6C PLUG CPU FIRMWARE UPGRADE CABLE FOR GE FANUC CPU351 CPU352 CPU363 RS-232C SERIAL PORT 1 TO PC 
5M Length
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TRENDnet TU-S4, 4-Port USB to Serial RS232 Hub
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TRENDnet TU-S4, 4-Port USB to Serial RS232 Hub
  • Type: Switches
  • Features: • Connect four RS232 serial devices, such as a modem, to a USB port on your computer • Easy installation • Supports USB 2.0 and compatible with USB 3.0 ports and USB 1.1 • Supports Windows® and Mac® operating systems
  • Model #: TU-S4
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  • $107.89 
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FOR 1.5M USB 2.0 to RS485 RS-485 RS422 RS-422 DB9 COM Serial Port Device Converter Adapter Cable CH340+ZT485 Chipset
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  • $57.62 - $59.62
STJF Type C USB to TTL serial port ch340n module upgrade MCU download brush line
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  • $17.99 
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HL-340 USB to RS232 COM Port Serial PDA 9 pin DB9 Cable Adapter support 7-64
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  • $19.70 
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HL-340 USB to RS232 COM Port Serial PDA 9 pin DB9 Cable Adapter support 7-64
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  • $20.99 
  • Free Shipping
Type C USB to TTL serial port ch340n module upgrade MCU download brush line
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  • $20.99 
  • Free Shipping
FTDI CHIP 4 Port USB to Serial RS232 DB9 Adapter Cable
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  • $96.41 
  • Free Shipping
CH340 PL2303 CP2102 FT232 USB to TTL Brush Download Line Serial Port Module TYPE-C
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  • $22.49 
  • Free Shipping