Adesso AKP-218 - keypad

The 18 Key Waterproof Keypad offers desktop and notebook users the instant benefit of a full-sized external numeric keypad in a compact format. With its water-proof silicone material, you don't have to worry about damaging the keyboard because you can't! You could spill a beverage on it and all you have to do is simply wipe or clean it off and continue to use it, good as new.