This is a vintage computing part from Integrand.  I am not sure what exactly the part does or would have been used for though if anyone has any information please feel free to let me know.  I am unable to test this out so it is being sold as is, for parts only.  The part weighs a little under 21 pounds and measures about 16" long by 5.5" deep by 5" tall.  Please ask if there are any questions.