That's just it. The manual doesn't say anything about it. It just has a generic description that actually involves USB and 1394 connectors. But my board came with rear panel USB and ESATA connectors. It even mentions SPDIF.
The mobo DOES have a 1394 port too, and I connected the chasis's front 1394 connector to it.
But it doesn't say anything about the included ESATA connector at all. And there is no "male header sticking up" on the mobo that says ESATA or anything.