Tripp Lite PK3020KB USB keyboard

Notebook Peripheral Kit (Keypad, Mouse and Hub) - Notebook/Laptop Computer Peripheral Devices - Asynchronous USB numeric keypad allows keypad to work independently of the keypad on your notebook.
- Mini optical USB mouse with 27" retractable cord works on virtually any surface and includes a quiet scrolling wheel; 480 dpi resolution and 450 mm/s tracking speed.
- USB 2.0 4-port hub allows you to connect up to four USB peripherals to your notebook and supports high-speed data transfer rates.
- Compact, zippered case protects contents and provides easy portability.