It's a hard drive. It holds information. In this case, close to 8Tb of information (less considering you have to format it). It's a CMR drive, so it's a decent speed. I added this to my server, and so far no complaints.
It's been added to a pool drive, so I haven't noticed specifically anything outstanding or poor about the server since this has been added. It works fine, and hopefully will continue to work for a while to come.
It did come very well packaged, with the drive suspended inside a wrap around cardboard case. The packaging was one of the best I've seen and certainly protected the drive during transport.