What are these ports for?

[sire011886]

Optical out
ILink
dc out (a port for a plug)

What are these for?

 

[uzi9mm]

optical out is for audio
iLink is firewire
and that DC port is for external power......

 

[sire011886]

so the optical out is for more advanced speakers set-ups
firewire is a better ethernet cabel, right?
and the dc port is for surge protectors with batteries?

 

[MikeyE]

nope nope and nope.

firewire is more like an imporved USB interface-extremely fast data transfers! Best used with digital video cameras, external hard drives, anything requiring large data transfers.

and the dc port? get real dude, that would be where you plug it in.