The PlayStation 4 Pro may not only support better graphics, but also faster HDD connection speeds.
According to NeoGAF, Sony has confirmed that the PlayStation 4 Pro will, in fact, support SATA 3.0, despite earlier claims that it would not. This is great news, as the default internal storage on the PlayStation 4 is often not enough, especially with the popularity and convenience of digital copies of games. SATA 3.0 will allow for quicker communication between the PlayStation 4 Pro and the hard-drive than we have seen in past Sony consoles.
Previously, in an interview with blog 4Gamer, Masayasu Ito—Executive Vice President of SIE—had incorrectly stated that the PlayStation Pro would not support SATA 3.0, confusing many until Sony’s statement was issued. With as innovative as the rest of the consoles upgrades are for the Pro, this would have been a massive oversight.
The PlayStation 4 Pro arrives on November 10th.
Source: 4Gamer via NeoGAF