The LessonBoard Pro computer keyboard is color-coded to show correct finger placement on the keyboard. Now without letters or numbers, it helps improve keyboard memorization, accuracy and speed, while requiring students to concentrate during testing. For all skill levels. USB connectivity with a PS/2 adapter.. Education Categories: Technology / Computer Accessories / Keyboards - Keyboard Covers . UNSPSC/NIGP Codes: 4321170600 - 05000000