There is some difference between this products? There some way to copy config of one and paste in another?
The products should be more or less the same. The letter at the end just corresponds to when we needed to change some internal components to new ones, but this does not change the function of the device.
You should be able to use the device’s configuration manager and then save the file from the previous device, then connect to the new device and download that file to the new device