Features: The AK15 USB Laptop Keyboard Tester offers comprehensive testing capabilities, ensuring the stability and reliability of keyboards across various USB interfaces. Featuring easy to test designing, the AK15 provides real time feedback on each key's response with high precisions, with LED indicators for clear status display. For technicians, repair engineers, and electronics enthusiasts who require precise keyboard diagnostics. Perfectly for use in computer repair shops, offices, and electronic engineering lab to efficiently diagnose keyboard and support new keyboard development. This durability tester for long time use, making it essential tool for anyone involved in keyboard maintenance and testing. Specifications: Model：AK15 USB Universal Laptop Keyboard Tester Size：about 12x4cm/4.72x1.57in Connection：USB Package Includes: 1PC AK15 USB Laptop Keyboard Tester note: Please allow 1-2cm errors due to manual measurement. Pictures may not reflect actual color due to different monitors.