The NEW Old Stock Memorex (3202-2314) Adjustable Trackball Mouse is a vintage piece that combines the convenience of a trackball with the connectivity options of a PS/2 mouse. With a maximum DPI of 6000 and a sleek black design, this mouse offers a unique and functional alternative for computer users. Featuring a compact height of 2 inches and a wired connectivity, this trackball mouse is both practical and reliable for everyday use. Made in China by the trusted brand Memorex, this mouse includes 3 buttons for easy navigation and utilizes an opto-mechanical tracking method for precise cursor movement.