I need to know what sort of compatibility eSATAp (Power over eSATA) ports have with SATA 2 and SATA 3 drives. I'm helping a friend get an external for his laptop and he has an e-sata usb combo port on it that we intend to use. Wikipedia claims it'll work with SATA 3, but I was looking for something more concrete.
This seems related Dell eSATAp not working with some SATA disks
Does this mean it can run just about any SATA drive, so long as there is an external power source for the external drive?