SATA I, II & III permutations

dragonic2020

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Jun 13, 2011
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Are all SATA I, II & III drives both backwards and forwards compatible?
In other words, can SATA 1.5 Gb/s hard drives work with SATA 6.0 Gb/s sockets? And vice versa?

I read that generally they are compatible forwards and backwards, but are there any exceptions to this?