Kensington Expert Trackball Mouse (K64325), Black Silver, 5W x 5-3/4D x 2-1/2H

• Large 55mm ball design and Diamond Eye optical tracking for precise cursor control; Patented scroll ring lets you scan up and down pages with ease
• Detachable, ergonomic wrist rest supports hand and wrist for improved comfort; Ambidextrous design
• Customizable 4-button design, scroll speed and cursor speed via *KensingtonWorks software. *Windows ARM-based computers are currently not supported. Please check back for future updates on compatibility
• ChromeOS user can get HID functions for a trackball but will not be able to customize their device through KensingtonWorks.
• Wired USB-A connection for reliable connectivity