So I recently got a razer blackwidow chroma, and I have a laptop right now. I am going to plug a monitor and keyboard into my laptop. My laptop has two usb 3.0 and 1 usb 2.0. I have a mouse plugged in so I only have one usb 3 left. When I got the keyboard, I say that there is 4 things to plug in, the main usb, an extension (I dont know what that does), the mic and headphone jack. I only have one jack and one usb 3 left, so do I need to plug every thingin, or can I leave some things unplugged? If not, do you know a way to add usb ports with like an adapter or something? Thanks