Microsoft Trackball Explorer 1.0 Optical Wired Mouse USB/PS/2 5-Button 400DPIThe Microsoft Trackball Explorer 1.0 is a versatile computer mouse that combines the convenience of a trackball with the functionality of a traditional mouse. With a maximum DPI of 400, this mouse offers precise and smooth tracking for a seamless computing experience. The compact design, featuring dimensions of 2.4 inches in height, 5.9 inches in length, and 4.0 inches in width, makes it ideal for smaller workspaces or on-the-go use. Additionally, the mouse is compatible with both PS/2 and USB connectivity options, ensuring flexibility and ease of use for a wide range of users.Condition: Please review all photos and description details carefully prior to purchase to ensure this item meets your expectations.Storage: Clean, smoke-free environment.Vintage & Pre-Owned Items: Age-appropriate wear, light patina, or minor discoloration may be present