 At this point you reach the end of this training session. So during this training session you were able to get basic information about USB, about the theory, signaling, transfers, class and descriptor and order general theory you would be able to found inside. Additionally we were presenting there also the ST tools used for USB development and debugging and that you were able to try on lots of both device or host examples. Additionally there were some information about debugging tools or driver signing process. As the USB is a very large topic not everything was covered here in details so if more details about theory is needed the best way best point where to go is the USB specification which is free to download on usb.org. Also the USB examples cannot be exhausting as there is a lot of possibilities also with STM32 some of them already covered in cubemix repositories with examples so if any other functionality is needed on your site please check it also there or you can find for sure plenty of materials on other webs. It's very important for us to know your opinion about the training to be able to improve in the future so please find some minutes to fill the feedback formula in this link. So I thank you for choosing this training and for reaching this point and looking forward to introduce you to some other topics during different training have a nice day.