In spite of Apple’s introduction of the 13″ unibody MacBook Pro notebook at WWDC last week, it may have opted for a slower standard. According to Engadget, the new MacBook Pro notebooks that ship with conventional hard disks may only have a 1.5GBps SATA enabled, while SSD configs are apparently getting the full 3.0GBps SATA II experience that used to be standard.
Albeit most people this won’t make too much difference since traditional hard drives can’t move data that fast, but it’s something to keep in mind if you’re hoping to buy an hard drive unit and swap in a speedier SSD, since your max performance will be bottlenecked.