This was pulled from a Tandy 1000HX. 
This is the Exact one #1. 
It is WORN but Working. 
The System it was pulled from had Heavy Heat Metal Wear. 
This was tested to work but found no DeskMate at Option.
 These May Need Upgraded Parts. 
This is a PARTS item. 
See this tested and pulled on my YouTube Channel 3/22/2025
AS-IS AS-Pictured.