When you use low-DPI settings you benefit from moderate resistance to the mouse feet when starting or stopping a rapid or sudden movement common to low DPI gaming. G640 features a surface heat-treated at 200° C to provide just the right amount of friction for low-DPI gaming maneuvers.
Heavy patterns and designs can interfere with sensor performance. G640 features a clean, consistent surface texture. This gives sensors better imagery for translating mouse movement into cursor movement, an improvement over inconsistent or dirty table and desk surfaces.
Manufacturer Part# : 943-000057
Dell Part# : A8688249