This is for optiLink 5. This cable is too expensive and does not sound better then two of my other optic cables. Neotech and CAV... yes no name brands compared to AQ. The other two seem to have a broader band wideth, and cost ten times + less. P.S I use King Cobra for all my analog connections and this are the best sounding value for money cables I have brought/tried my monster cables are in the bin.