Got a replacement seagate BUplus 4TB usb hdd have 6 of these total and one that failed. It was replaced by Seagate. Crystal Disk Info says it is 5526 RPM drive the others all say 5400. Is this okay? Never heard of a 5526 rpm 2.5 hdd.
If you're worried about the health on the drive and would like to either get peace of mind or pinpoint a problem, it would be a good idea to grab our free diagnostic software SeaTools and run a long generic test on the drive. If everything comes back clean, then you should be in good shape.