HGST - how to decipher the constituent model names?

Question

Hard disks

I want to pick up HDD for NAS Synology. There is an opinion that HGST is more reliable than the rest.
First: I can't find the manufacturer's official website with these discs. Where is he hiding?
Secondly: it is not clear how the letters in the model name are deciphered.
Who will help? Google did not help, only excavators, compressors, tools ...

Answer 1

take ultrastars of the required volume, this particular line is designed to work in 24x7 raids