they're all made in the same Factory, somewhere in deepest China. It wouldn't surprise me one little bit.
I cannot remember a single complaint (here) about a faulty External Hard Drive, but there must be some. I think that most Proprietary Brands would be a safe enough bet but ~~~~~~~~~~~~~~~~ Remember, never rely on a single Back-up. You could get an empty case and cannibalise an old PC or two.
had a faulty one replaced it and the replacemet was faulty too must have been bad batch, they just woiuld not show in my computer, according to pcw they get a few like this. cant remember the make but were the cheaper ones in a sale.
The most reliable external disks I've had have been Freecom. They're not the quietest or particularly look good (if you like that) but they go on and on. After dismantling my failed drives the most common manufacturer of failed drives has been Samsung (which surprised me) closely followed by Seagate. As a double check none of the failed drives worked when mounted as internal drives.
. . . and they had a TB external drive for £60 and 500GB for £10 less. Some of their stuff looked very inexpensive and I would probably agree that they're all made by the same (few) manufacturers. Any mainstream brand name should be as reliable as any another imho.
I've used lots, but always go back to Seagate, for internal and external. My last expense was a Seagate Freeagent 500GB Desktop purely for backups, docs, music etc. I buy most of my accessories from Ebuyer and Novatech, depending on availability and price.