In an interview with 4Gamer, Sony Interactive Entertainment Engineering Chief Masayasu Ito had said that the both the PS 4 Slim and the upcoming PS 4 Pro will feature support for SATA 2.0 Hard drives.
However, they have now corrected that statement, clarifying that the PS 4 Pro will actually use the SATA 3.0 Interface for the hard drives. This is bound to increase the transfer rate from 3 Gbit/s to 6 Gbit/s, a double in transfer speed. As a result, the performance concerning the data storage and transfer for the upcoming console is expected to improve tremendously. Installation times and loading times should come down by a huge margin as well, but real-time tests are required to know for sure.
You can read the original interview on 4Gamer.
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