The USB device appear to be in the wrong location in Device Manager.
What is your Windows version?
Is the device listed under Sound, video and game controllers? This is where my USB 2820 (an earlier model of your device) appears.
If not try the following with the USB device plugged in:
In Device Manager, uninstall the USB device, if asked do you want to delete the drivers do so,
Close the Device Manager window
Install the Magix driver you downloaded for the Red/White converter.
Unplug the USB device.
Restart the computer - Windows button, Power option, Restart.
Login and allow the computer to continue loading drivers etc for about 5 mins, then plug in the USB device - it should then appear in the correct location with the correct driver.
Tusen takk for hjelpen din, det jeg gjorde var å sette cd-en på en gammel bærbar datamaskin og overføre den til usb minnepenn også installerte jeg alt på min windows 10 laptop, jeg får bare lyd signaler men ingen video signaler fra vhs scart, bruker video saver version 4.0, har kontaktet Magix support nå, men igjen tusen takk!:D