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Fanless Industrial Mini PC Pentium J2900 4x Serial Ports RS232 RS485 2x Gigabit Ethernet Mini PCIe WiFi 4G LTE SIM Windows Linux

Fanless Industrial Mini PC Pentium J2900 4x Serial Ports RS232 RS485 2x Gigabit Ethernet Mini PCIe WiFi 4G LTE SIM Windows Linux  Read more 

from AliExpress   
$173.73
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Original Industrial USB to RS485 Serial Converter Half Duplex FT232RL Communication Module CH343G Industrial Win8 10 Linux Mac

Original Industrial USB to RS485 Serial Converter Half Duplex FT232RL Communication Module CH343G Industrial Win8 10 Linux Mac  Read more 

from AliExpress   
$9.93
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PCI Serial Port Connectors Card PCI to COM 9 Pin RS232 DB9 Desktop Computer Adapter Expansion Cards for Windows Linux

PCI Serial Port Connectors Card PCI to COM 9 Pin RS232 DB9 Desktop Computer Adapter Expansion Cards for Windows Linux  Read more 

from AliExpress   
$4.79
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(IN Stock)