Can't seem to find a definitive answer to this by Googling and all their website says is:

So, does anyone know?
It does not say it's 'powered'. Also, the front panel I/O on my HAF 932 case has an eSata connector too but again not sure if it's powered or not when connected to the P6T Deluxe V2? I'm looking to buy an external 2.5" portable HDD with 500GB or more and 7,200 rpm if possible with USB 2.0 and eSata connectors, Verbatim recently announced a 500GB USB/eSata drive that comes with a powered eSata cable and can also use the USB port for power if the eSata port is not powered, except I don't know if the P6T Deluxe V2 has powered eSata portsThe external SATA port located at the back I/O provides smart setup and hot-plug functions. Easily backup photos, videos and other entertainment contents on external devices.

So, does anyone know?