Kensington Expert Mouse Wired Trackball

The product shown is the Kensington Expert Mouse Wired Trackball, a high-performance input device recognized for its large 55mm trackball and integrated scroll ring. This specific model features a distinctive ruby red ball housed in a black ergonomic frame, designed to reduce repetitive wrist movement compared to traditional mice.

Kensington was originally founded in 1981 in the United States and became a pioneer in computer security and peripheral innovation. The brand is currently a flagship division of ACCO Brands, a global leader in office and consumer products. While the brand's design and engineering are headquartered in the United States, manufacturing is primarily centered in China to leverage specialized electronics production facilities. Ownership remains stable under ACCO Brands, which manages the brand's global distribution through various regional subsidiaries.