here is what I see when I connect the DB410
It is defined as Modem and also as COM port.
Modem would be the ADB link and the COM port when you use the Console.
If you do not see this it is better to install the drivers again. You probably have a device connected which is not correctly defined, so click on it and install manually the drivers (the one you downloaded).
Then use ADB to see if your device is connected do not try using Android studio.
Use the cmd prompt terminal and go to your Android installation directory.
and then go to the SDK (cd sdk)
then go to platform-tools. (cd platform-tools)
then type "ADB devices" and you should see your devices listed.
If you have more question just come back.