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Product FAQs


How do I check to ensure the COM port is listed properly in Windows?

To ensure your serial device is installed properly, complete the following:

  1. Open the Device Manager by pressing the Windows Key + R. Type “devmgmt.msc” and press Enter.
  2. Expand the Ports (COM & LPT) section.
  3. You should see a COM number in brackets to the right of each port, and there should not be any exclamation points or question marks next to the entries in the list.