Review on Kadaon USB Numeric Keypad - Convenient 18 Key Number Keyboard for Laptop/Notebook PC by John Gray

Good: Plug and play on my two laptops (one with Windows, one with Linux). Very good price. glides on smooth surfaces. They need light and soft rubber feet instead of plastic feet. The key mechanism is a bit light and springy, but acceptable for everyday use. Bottom line: if your laptop doesn't have a numeric keypad like most and you need it occasionally for data entry or gaming, this works well and you can't beat the price. I wouldn't use it for intensive data entry jobs, but if you're doing this type of work you should still have a full keyboard with a number pad. Five stars.