Outer box included. USB cable not included. Shows considerable signs of use. I mainly used it for sound output, so I don't think there will be any problems with mixing or DJing. However, please understand that this is a used item before purchasing. A license key is not included, but it supports plug-and-play, so I think it can be used without any problems. I will lower the price from time to time at my convenience. I will not make it a dedicated item.