Logitech Cordless MouseMan Optical Blue USB+PS/2

Description: Connection interface: PS/2, USB Type A, operating principle: optical LED, number of keys: 4, optical sensor resolution: 800 dpi
Type: Mouse
Connection type: Wireless
Principle of operation: Optical LED
Connection interface: PS/2, USB Type A
Number of keys: 4
Built-in Options: Scroll wheel
Optical sensor resolution: 800 dpi