Optics or coaxial s/pdif

All welcome. Is the laptop DNS (0170717) he's a clevo w370st, it has s/pdif input ( looks like a 3.5 Jack), the question is how to determine optical or coaxial? FOR is sound blaster cinema (if important). I don't know which cable to buy.
Photo s/pdif
Спойлерhttps://proxy.au.ru/https/proxy.au.ru/https/pp.vk.me/c636931/v636931692/3b255/Rjcqwh-1dWQ.jpg