So now to the new device. It runs for one day. It's quick and barely audible in my classic Tower PC with vibration-damping HDD cage. Would say reading hears nothing. Writing does it make noise, but it is by no means noisy and it is not at all disturbing. Yes there slower drives and SSDs for Silent Freaks ...
Installation was straightforward. Plate was immediately recognized (Win 8.1).
The readings of my previous reviewers I've also achieved.
I think it is the hard drive, as with all predecessors.
Nothing save 80% full pack / 7 days always on and then to safety 10 weeks exclusively on the disk.
If they then still alive she goes to the normal operating with standard backups of important files.
I'm keeping her fingers crossed to keep the same length as its predecessor!