The 2004 Micro Innovations 3 Button Optical Scroll Mouse Model PD425P is a PS2 compatible mouse that offers a maximum DPI of 1500. This ergonomic mouse features a scroll wheel, grip design, and optical tracking method. With a sleek gray color and three buttons, this unit is perfect for those looking for a reliable and efficient pointing device for their computer or workstation. Made in China, this mouse provides a comfortable and precise experience for users.