@Alessandro Germiniasi Welcome to Q&A forum!
The Azure Kinect DK is available for purchase in the United States, China, Germany, Japan and the United Kingdom Please see the post for more details. Azure Kinect DK is now available in Japan, Germany, and the UK
You can purchase Kinect DK using this link: https://www.microsoft.com/en-us/p/azure-kinect-dk/8pp5vxmd9nhq?rtc=1&activetab=pivot:overviewtab
Let us know if you have any further queries.