Hi Shinez, welcome to the forum. That link doesn't work here, can you tell us the SKU # you're looking at? We can look it up from there.
Thank you for updating that Shinez. I recommend using the manual for your motherboard or other components to figure out which ports you should use. There are also a lot of Youtube videos that we've found to be particularly helpful for building systems. Which cables are you in particular having issues with? Feel free to send us a picture.
What cables are you having an issue with?
The two Cables outlined should run to the motherboard outlined in the image below.
The graphics card power supply cables will come from the power supply with the modular cables highlighted in the image below.
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