This is used, and fully functional.

Taken from my gaming PC.

original packaging not included, will be in an antistatic bag and foam packaging.

Product details can be found on Intel's site here: https://ark.intel.com/content/www/us/en/ark/products/199331/intel-core-i9-10900kf-processor-20m-cache-up-to-5-30-ghz.html