Review on Waterproof USB Number Pad: Kadaon 19 Keys Silent Numeric Keypad with Mini USB Cable for Laptop/Notebook, Windows System Compatible by Eddie Pollard

My work computer does not include a digital block and using it definitely speeds up my work. It was very easy to install - literally just plug it in and it's ready to go. The only downside is that the buttons are a little stiff to press. I hope they loosen up more when I use this.