my iphone 6s cannot charge and the original cable fix that!

Recently, suddenly I find that my iphone 6s cannot charge.

I have been using a replacement iphone cable that have been used for many months without any problem. My first attempts are to try other chargers and ports and all fails. Then I try other replacement cables too and they also fail to charge.

My last attempt is to find out my original cable that come with that iphone, it charges. So what is different in the original cable come with the iphone and replacement cables that I buy from other manufacturers?