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![Amazon.com: 1 Port PCI RS485 Serial Adapter Card with 16C750 UART - PCIe X1 to RS-485 Serial Card, with Cable [44 pin Breakout to (4) DB9] : Electronics](https://m.media-amazon.com/images/I/61QtY9i6ctL._AC_UF894,1000_QL80_.jpg "Amazon.com: 1 Port PCI RS485 Serial Adapter Card with 16C750 UART - PCIe X1 to RS-485 Serial Card, with Cable [44 pin Breakout to (4) DB9] : Electronics")
Amazon.com: 1 Port PCI RS485 Serial Adapter Card with 16C750 UART - PCIe X1 to RS-485 Serial Card, with Cable [44 pin Breakout to (4) DB9] : Electronics
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RS485 to PWM Driver Module, Cascade Available 1 to 20000Hz PWM Transistor Driver Board 8 Channel for Solenoid Valve for Small Power Motor (No Pins): Amazon.com: Industrial & Scientific
