This is a mount for the original Xbox Open Xenium. The Open Xenium (like most Xbox modchips) sits on a pin-header in the LPC port with no other support. This mount both supports the Open Xenium and secures it in place preventing the chip from accidentally coming off the pin-header.
Edit: 07/24/23 - The latest revision features a retention clip and secures in place using the screw behind the LPC port. No tape needed! (V2 is 1.6 Only).
Edit: 07/28/23 - Updated the model to support 1.0 through 1.6. The LPC port is slightly offset on earlier models vs 1.6. The new revision has a slightly wider screw area and should be a “universal” mount supporting all motherboard revisions.
The author marked this model as their own original creation.