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> Companies exist to make profit. They can only make a profit if people are willing to buy what they're selling > Their business is selling hard drives. Then either they or you are confused. They make the NAS, not the drives. The drives are interchangeable and upgradable, that's the whole point of a hot-swap NAS system. > I bet a large portion of profits come from that I think they wanted a large portion of profits t…
Also, some will deliberately mix drives from various manufacturers to reduce exposure to potential “bad batch” problems where multiple drives fail in a short space of time (possibly extra failures while rebuilding an array after the first failure, rendering the whole array untrustworthy or entirely broken). This is not possible if you can only purchase from one manufacturer.