new generation for ben-z for mercedes vehicles' diagnosis. can support diagnostic and p[rogramming, if you have account, you can do online coding too. buy full set with lap we will activate all, when you get this set, you don't need to install others. it's much more convenient it can support wifi. lan, and usb connect. while we don't suggest you use usb to connect it, in this way, it's easy to damage the epc. and we also offer technical online support. we also have other lapto match this set, if you need, please contact us.