Quote: Originally Posted by whs
Yeah, but you have to have a device that can make use of all that good speed. That's why eSata was never very popular. The disks did not transfer any faster because the channel is fast.
eSATA was never popular because it needs a proprietary connection, in some cases needed ACHI to be enabled in the BIOS for hot-swap capability, has a very limited cable length and was overall a pain in the rear. It had nothing to do with performance.
USB 3.0 is completely backwards compatible with current USB 2.0 ports and on USB 3.0 offers nearly identical internal transfer rates. It's the same as USB 2.0's positives and none of the negatives (slow transfer rate, all devices are on a hub and share bandwidth, etc).