4Pcs CH340G Usb 2.0 To 9-Pin RS232 Com Port Serial Convert Adapter Ic New ni
7,12 €
Support RS232 serial interface (both DB25 and DB9). The USB to Serial/Parallel Adapter provides the connection between USB and the traditional RS-232 serial port. Since the adapter uses no IRQs, it is perfect if you need many serial devices attached to your PC.
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