Synology does not recognize the WD Red Drive in the Storage Manager

I’m trying to upgrade my storage on my NAS. I have purchased two 4TB WD Red Plus for the DS920+. I’ve inserted the first drive which worked perfect and has been recognized by the Storage Manager.

Then, I have inserted the second one and this just starts to do some noises and responds with a kind of error beep.

Missing drive

I have also here a video, what happens when I plugin the hard drive:

Now my question is, if the hard drive is defect or what else this error beep can be?

Thanks in advance.