I've had an A7N8X ASUS motherboard (etc) for awhile now. I'm just now wanting to get an optical SPDIF connection to my stereo. My only digital coax connection is taken by my cable box, but I have one ...

I'm connecting my new Squeezebox Duet to a DAC via Spdif. Both ends have an RCA termination. Will any old interconnect work here or is there some magic ju-ju that comes from a digital cable? One is ...