+1, and for other cable management. Google a guide of Computer Cable management. I watched many youtube video for it before i actually got things looking excellent and keeping the back of the case from looking like a rats nest
yes..i'm saying about keyboard,mouse,monitor,speakers connection which is at the back of cpu
Your misinformed buddy. You're talking about your computer case (also known as a computer chassis, cabinet, box, tower, enclosure, housing, system unit or simply case). Not your CPU. The CPU is a small piece of computer hardware located inside your case. The case holds all your internal computer hardware. That would explain why no one was understanding your question.
And to answer your question, yes there is. Eliminate any unused devices that have cables running into your computer. =). If you use all the devices then the next step would be to upgrade. Wireless mouse and keyboard would be my first thought.