mutiple digital audio out

I have an hp pavilion desktop
I am looking for a sound card
that can output multiple digital audio at the same time, and or output digital and analog at the same time.
I want to listen to iTunes and send the signal to my computer speakers analog and to three different receivers either with optical or coax digital audio.
does this product exist?

You're probably better off looking for a typical audio card that has analog and digital output, then using a splitter to distribute the digital outputs to multiple receivers.
Coax digital audio can be put through a composite video signal splitter / distribution box since the signals are both 75 ohm. Optical S/PDIF is a little trickier, but a quick search found some optical splitters out there, like this: http://www.ebay.com/itm/2-Port-Optical-Audio-S-PDIF-Toslink-Splitter-Amplifier-/120444326891