ManufacturerMouse Systems Corp.
Dimensionsoverall: 1 3/8 in x 2 1/4 in x 4 1/4 in
DescriptionObject is mouse with three buttons, a scroll wheel and a button on the left side.
There is a slide switch on the bottom with notation "2" on the left and "3" on the right.
The cable has a DB-9 female connector.