This morning Microsoft announced the XBOX Series X25 Limited Edition console, which was launched specifically in conjunction with the 25th anniversary of Xbox. It is an Xbox Series X with a body and controller made of a transparent green material. The internal components of the console and the controller can be seen from the outside.
The console also has a green light on the Xbox logo when activated and comes with 1 TB of storage. On the XBOX Wireless Controller X25 Special Edition, the Xbox button also lights up in green, the ABXY buttons in the original color and the black/white shoulder buttons like the first Xbox controller.
The XBOX Series X25 Limited Edition will go on sale this November but the selling price has not yet been announced by Microsoft.

