Is the following correct?
eSATA is the same as SATA, except that the cable plug has a slightly different shape, but as far as the electrical signal goes, it's the exact same thing. In theory, if you had a powered-on HDD enclosure with an eSATA port and a cable with an eSATA plug on one end and a SATA plug on the other end, you could connect this device directly to a SATA socket on the motherboard of a powered-on PC and it would work.
(Note: This is theoretical; I don't propose mucking about inside a powered-on PC.)
Best Answer
Yes, from what I can tell, that is correct: