The Rottay Backlit Number Pad is a wired numeric keypad with a 22-key layout, designed for use with laptops in an office setting. It features a standard QWERTY layout and a single color backlit keyboard, providing enhanced function keys and plug-and-play connectivity. Made in China by the ROTTAY brand, this keypad is compact with dimensions of 5.9 x 3.1 x 0.8 inches and weighs 5.9 ounces, making it a convenient and efficient addition to your workspace. Pre-owned in good condition. Untested. Will ship from my smoke-free home.