New and Improved EZSee by DC Large Print English QWERTY Keyboard - Vivid White Letters on Black BackGround Keys - Wired USB Connection - For Visually Impaired, Weak Vision in Low Lighted Areas Further, Positive contrast is the case of a light object on a dark background such as white print on a black field. Large Print Keyboards are perfect for anybody who has a hard time seeing the letters on their computer keyboards. It is a full size enhanced 104 key keyboard with standard US English keyboard layout printed in big Highly visible large print letters on keycaps * One-touch Internet and email hot keys Works with all Windows no need for CD. Windows 7, Vista, and XP - Not Intended for Mac