DB (D-Sub) Connectors and COM Ports A serial port on a PC is a male 9-pin connector (DE-9 D-sub). Early PCs had two 9-pin connectors or one 9-pin and one 25-pin (DB-25). On a PC, serial ports are ...
Check for Windows updates if there are any available and install them. PCI Serial Port Drivers might get installed along with the Windows update. Also, you can install drivers via Device Manager ...
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