How to plug in a 5.1 speaker system?

I was wondering, I am looking into upgrading from my integrated Realtek HD Audio to a Creative X-Fi XtremeGamer sound card. However, the card only has a Line In, Line Out, Mic in, and a "FlexiJack." How would I got about plugging in the three 3.5mm plugs for my 5.1 speaker system? The speaker system has a Line Out, Subwoofer Out, and Rear/Surround Out.

Thanks in advance.

No, it has a line in, Sub in, and rear in, not out. The Xtreme gamer has three outputs. Once you install the card and it's software, it will tell you which goes in which. If by some chance it doesn't, you can do sound tests to make sure it's hooked up correctly. If the sound isn't coming out of the correct speakers, simply keeping retesting until you've got the right combo.

Creative Sound cards always uses proprietary terminal wiring arrangement, mostly cards sold capable of 6.1 and 7.1 systems. Unlike most manufacturers that uses three poles per terminal output jack, Creative cards uses 4 poles if system is use higher than 5.1.

If you want to add 1 or 2 extra speakers later on to make it at 6.1 or 7.1 then you have three options.
Option one is to buy the cable from them. 6.1 wiring is different than 7.1
Option two call them and ask how to make your own cabling.
Option three; buy the 6.1 or 7.1 speakers system from them.

As long as you don’t go over 5.1 you are ok and you should check your future use before getting one from Creative. That’ll save you headaches later on. Of course if your 5.1 speaker system uses RCA connections you then need adapters.

Check the product documentation on the product you’re interested here: http://us.creative.com/support/dow [...] pe=manuals

For 5.1 setup; starting from the one with microphone itching.
(PINK) Audio in / MICDIGITAL.
(GREEN)Line 1 Front.
(BLACK) Line 2 Rear.
(ORANGE) Line 3 Center and Sub.
AD_Link connector.(26 Pins)

For 6.1 Orange wire becomes 4 poles.
For 7.1 Orrange and Black becomes 4 poles with extra wire added.